org.chromium.chrome.browser.preferences.ChromePreferenceManager Java Examples

/**
 * Once native is loaded we can consult the command-line (set via about:flags) and also finch
 * state to see if we should enable WebAPKs.
 */
public static void cacheEnabledStateForNextLaunch() {
    ChromePreferenceManager preferenceManager =
            ChromePreferenceManager.getInstance(ContextUtils.getApplicationContext());

    boolean wasCommandLineEnabled = preferenceManager.getCachedWebApkCommandLineEnabled();
    boolean isCommandLineEnabled = isCommandLineFlagSet();
    if (isCommandLineEnabled != wasCommandLineEnabled) {
        // {@link launchWebApkRequirementsDialogIfNeeded()} is skipped the first time Chrome is
        // launched so do caching here instead.
        preferenceManager.setCachedWebApkCommandLineEnabled(isCommandLineEnabled);
    }

    boolean wasEnabled = isEnabledInPrefs();
    boolean isEnabled = computeEnabled();
    if (isEnabled != wasEnabled) {
        Log.d(TAG, "WebApk setting changed (%s => %s)", wasEnabled, isEnabled);
        preferenceManager.setCachedWebApkRuntimeEnabled(isEnabled);
    }
}
 

/**
 * Stores the successes and failures from uploading crash to UMA,
 */
public static void storeBreakpadUploadStatsInUma(ChromePreferenceManager pref) {
    for (String type : TYPES) {
        for (int success = pref.getCrashSuccessUploadCount(type); success > 0; success--) {
            RecordHistogram.recordEnumeratedHistogram(
                    HISTOGRAM_NAME_PREFIX + type,
                    SUCCESS,
                    HISTOGRAM_MAX);
        }
        for (int fail = pref.getCrashFailureUploadCount(type); fail > 0; fail--) {
            RecordHistogram.recordEnumeratedHistogram(
                    HISTOGRAM_NAME_PREFIX + type,
                    FAILURE,
                    HISTOGRAM_MAX);
        }

        pref.setCrashSuccessUploadCount(type, 0);
        pref.setCrashFailureUploadCount(type, 0);
    }
}
 

/**
 * Launches the signin promo if it needs to be displayed.
 * @param activity The parent activity.
 * @return Whether the signin promo is shown.
 */
public static boolean launchSigninPromoIfNeeded(final Activity activity) {
    // The promo is displayed if Chrome is launched directly (i.e., not with the intent to
    // navigate to and view a URL on startup), the instance is part of the field trial,
    // and the promo has been marked to display.
    ChromePreferenceManager preferenceManager = ChromePreferenceManager.getInstance(activity);
    if (MultiWindowUtils.getInstance().isLegacyMultiWindow(activity)) return false;
    if (!preferenceManager.getShowSigninPromo()) return false;
    preferenceManager.setShowSigninPromo(false);

    String lastSyncName = PrefServiceBridge.getInstance().getSyncLastAccountName();
    if (ChromeSigninController.get(activity).isSignedIn() || !TextUtils.isEmpty(lastSyncName)) {
        return false;
    }

    AccountSigninActivity.startAccountSigninActivity(activity, SigninAccessPoint.SIGNIN_PROMO);
    preferenceManager.setSigninPromoShown();
    return true;
}
 

/**
 * @return Which flavor of Herb is being tested.  See {@link ChromeSwitches#HERB_FLAVOR_ANISE}
 *         and its related switches.
 */
public static String getHerbFlavor() {
    Context context = ContextUtils.getApplicationContext();
    if (isHerbDisallowed(context)) return ChromeSwitches.HERB_FLAVOR_DISABLED;

    if (!sIsHerbFlavorCached) {
        sCachedHerbFlavor = null;

        // Allowing disk access for preferences while prototyping.
        StrictMode.ThreadPolicy oldPolicy = StrictMode.allowThreadDiskReads();
        try {
            sCachedHerbFlavor =
                    ChromePreferenceManager.getInstance(context).getCachedHerbFlavor();
        } finally {
            StrictMode.setThreadPolicy(oldPolicy);
        }

        sIsHerbFlavorCached = true;
        Log.d(TAG, "Retrieved cached Herb flavor: " + sCachedHerbFlavor);
    }

    return sCachedHerbFlavor;
}
 

/**
 * @return Which flavor of Herb is being tested.
 *         See {@link ChromeSwitches#HERB_FLAVOR_ELDERBERRY} and its related switches.
 */
public static String getHerbFlavor() {
    Context context = ContextUtils.getApplicationContext();
    if (isHerbDisallowed(context)) return ChromeSwitches.HERB_FLAVOR_DISABLED;

    if (!sIsHerbFlavorCached) {
        sCachedHerbFlavor = null;

        // Allowing disk access for preferences while prototyping.
        StrictMode.ThreadPolicy oldPolicy = StrictMode.allowThreadDiskReads();
        try {
            sCachedHerbFlavor = ChromePreferenceManager.getInstance().getCachedHerbFlavor();
        } finally {
            StrictMode.setThreadPolicy(oldPolicy);
        }

        sIsHerbFlavorCached = true;
        Log.d(TAG, "Retrieved cached Herb flavor: " + sCachedHerbFlavor);
    }

    return sCachedHerbFlavor;
}
 

/**
 * Stores the successes and failures from uploading crash to UMA,
 */
public static void storeBreakpadUploadStatsInUma(ChromePreferenceManager pref) {
    for (String type : TYPES) {
        for (int success = pref.getCrashSuccessUploadCount(type); success > 0; success--) {
            RecordHistogram.recordEnumeratedHistogram(
                    HISTOGRAM_NAME_PREFIX + type, SUCCESS, HISTOGRAM_MAX);
        }
        for (int fail = pref.getCrashFailureUploadCount(type); fail > 0; fail--) {
            RecordHistogram.recordEnumeratedHistogram(
                    HISTOGRAM_NAME_PREFIX + type, FAILURE, HISTOGRAM_MAX);
        }

        pref.setCrashSuccessUploadCount(type, 0);
        pref.setCrashFailureUploadCount(type, 0);
    }
}
 

/**
 * Cache whether the Instant Apps feature is enabled.
 * This should only be called with the native library loaded.
 */
public void cacheInstantAppsEnabled() {
    Context context = ContextUtils.getApplicationContext();
    boolean isEnabled = false;
    boolean wasEnabled = isEnabled(context);
    CommandLine instance = CommandLine.getInstance();
    if (instance.hasSwitch(ChromeSwitches.DISABLE_APP_LINK)) {
        isEnabled = false;
    } else if (instance.hasSwitch(ChromeSwitches.ENABLE_APP_LINK)) {
        isEnabled = true;
    } else {
        String experiment = FieldTrialList.findFullName(INSTANT_APPS_EXPERIMENT_NAME);
        if (INSTANT_APPS_DISABLED_ARM.equals(experiment)) {
            isEnabled = false;
        } else if (INSTANT_APPS_ENABLED_ARM.equals(experiment)) {
            isEnabled = true;
        }
    }

    if (isEnabled != wasEnabled) {
        ChromePreferenceManager.getInstance(context).setCachedInstantAppsEnabled(isEnabled);
    }
}
 

/**
 * Launches the signin promo if it needs to be displayed.
 * @param activity The parent activity.
 * @return Whether the signin promo is shown.
 */
public static boolean launchSigninPromoIfNeeded(final Activity activity) {
    // The promo is displayed if Chrome is launched directly (i.e., not with the intent to
    // navigate to and view a URL on startup), the instance is part of the field trial,
    // and the promo has been marked to display.
    ChromePreferenceManager preferenceManager = ChromePreferenceManager.getInstance();
    if (MultiWindowUtils.getInstance().isLegacyMultiWindow(activity)) return false;
    if (!preferenceManager.getShowSigninPromo()) return false;
    preferenceManager.setShowSigninPromo(false);

    String lastSyncName = PrefServiceBridge.getInstance().getSyncLastAccountName();
    if (ChromeSigninController.get().isSignedIn() || !TextUtils.isEmpty(lastSyncName)) {
        return false;
    }

    AccountSigninActivity.startIfAllowed(activity, SigninAccessPoint.SIGNIN_PROMO);
    preferenceManager.setSigninPromoShown();
    return true;
}
 

/**
 * Launches the signin promo if it needs to be displayed.
 * @param activity The parent activity.
 * @return Whether the signin promo is shown.
 */
public static boolean launchSigninPromoIfNeeded(final Activity activity) {
    // The promo is displayed if Chrome is launched directly (i.e., not with the intent to
    // navigate to and view a URL on startup), the instance is part of the field trial,
    // and the promo has been marked to display.
    ChromePreferenceManager preferenceManager = ChromePreferenceManager.getInstance(activity);
    if (MultiWindowUtils.getInstance().isLegacyMultiWindow(activity)) return false;
    if (!preferenceManager.getShowSigninPromo()) return false;
    preferenceManager.setShowSigninPromo(false);

    String lastSyncName = PrefServiceBridge.getInstance().getSyncLastAccountName();
    if (ChromeSigninController.get(activity).isSignedIn() || !TextUtils.isEmpty(lastSyncName)) {
        return false;
    }

    AccountSigninActivity.startIfAllowed(activity, SigninAccessPoint.SIGNIN_PROMO);
    preferenceManager.setSigninPromoShown();
    return true;
}
 

/**
 * Stores the successes and failures from uploading crash to UMA,
 */
public static void storeBreakpadUploadStatsInUma(ChromePreferenceManager pref) {
    for (String type : TYPES) {
        for (int success = pref.getCrashSuccessUploadCount(type); success > 0; success--) {
            RecordHistogram.recordEnumeratedHistogram(
                    HISTOGRAM_NAME_PREFIX + type,
                    SUCCESS,
                    HISTOGRAM_MAX);
        }
        for (int fail = pref.getCrashFailureUploadCount(type); fail > 0; fail--) {
            RecordHistogram.recordEnumeratedHistogram(
                    HISTOGRAM_NAME_PREFIX + type,
                    FAILURE,
                    HISTOGRAM_MAX);
        }

        pref.setCrashSuccessUploadCount(type, 0);
        pref.setCrashFailureUploadCount(type, 0);
    }
}
 

/**
 * To be triggered when a snippet is bound to a ViewHolder.
 */
public void onSnippetBound(View cardView) {
    // We only run if the feature is enabled and once per NTP.
    if (!SnippetsConfig.isIncreasedCardVisibilityEnabled() || mFirstCardAnimationRun) return;
    mFirstCardAnimationRun = true;

    // We only want an animation to run if we are not scrolled.
    if (computeVerticalScrollOffset() != 0) return;

    // We only show the animation a certain number of times to a user.
    ChromePreferenceManager manager = ChromePreferenceManager.getInstance(getContext());
    int animCount = manager.getNewTabPageFirstCardAnimationRunCount();
    if (animCount > CardsVariationParameters.getFirstCardAnimationMaxRuns()) return;
    manager.setNewTabPageFirstCardAnimationRunCount(animCount + 1);

    // We do not show the animation if the user has previously seen it then scrolled.
    if (manager.getCardsImpressionAfterAnimation()) return;

    // The peeking card bounces up twice from its position.
    ObjectAnimator animator = ObjectAnimator.ofFloat(cardView, View.TRANSLATION_Y,
            0f, -mPeekingCardBounceDistance, 0f, -mPeekingCardBounceDistance, 0f);
    animator.setStartDelay(PEEKING_CARD_ANIMATION_START_DELAY_MS);
    animator.setDuration(PEEKING_CARD_ANIMATION_TIME_MS);
    animator.setInterpolator(PEEKING_CARD_INTERPOLATOR);
    animator.start();
}
 

/**
 * Cache whether or not Chrome Home is enabled.
 */
public static void cacheChromeHomeEnabled() {
    Context context = ContextUtils.getApplicationContext();

    // Chrome Home doesn't work with tablets.
    if (DeviceFormFactor.isTablet(context)) return;

    boolean isChromeHomeEnabled = ChromeFeatureList.isEnabled(ChromeFeatureList.CHROME_HOME);
    ChromePreferenceManager manager = ChromePreferenceManager.getInstance(context);
    boolean valueChanged = isChromeHomeEnabled != manager.isChromeHomeEnabled();
    manager.setChromeHomeEnabled(isChromeHomeEnabled);
    sChromeHomeEnabled = isChromeHomeEnabled;

    // If the cached value changed, restart chrome.
    if (valueChanged) ApplicationLifetime.terminate(true);
}
 

/**
 * @return Which flavor of Herb is being tested.
 *         See {@link ChromeSwitches#HERB_FLAVOR_ELDERBERRY} and its related switches.
 */
public static String getHerbFlavor() {
    Context context = ContextUtils.getApplicationContext();
    if (isHerbDisallowed(context)) return ChromeSwitches.HERB_FLAVOR_DISABLED;

    if (!sIsHerbFlavorCached) {
        sCachedHerbFlavor = null;

        // Allowing disk access for preferences while prototyping.
        StrictMode.ThreadPolicy oldPolicy = StrictMode.allowThreadDiskReads();
        try {
            sCachedHerbFlavor =
                    ChromePreferenceManager.getInstance(context).getCachedHerbFlavor();
        } finally {
            StrictMode.setThreadPolicy(oldPolicy);
        }

        sIsHerbFlavorCached = true;
        Log.d(TAG, "Retrieved cached Herb flavor: " + sCachedHerbFlavor);
    }

    return sCachedHerbFlavor;
}
 

/**
 * Constructs an object that tracks impressions and clicks per user to produce CTR and
 * impression metrics.
 */
CtrSuppression() {
    mPreferenceManager = ChromePreferenceManager.getInstance();

    // This needs to be done last in this constructor because the native code may call
    // into this object.
    mNativePointer = nativeInit();
}
 

/**
 * Handles Tap suppression by making a callback to either the handler's #handleSuppressedTap()
 * or #handleNonSuppressedTap() after a possible delay.
 * This should be called when the context is fully built (by gathering surrounding text
 * if needed, etc) but before showing any UX.
 */
void handleShouldSuppressTap() {
    int x = (int) mX;
    int y = (int) mY;

    // TODO(donnd): add a policy method to get adjusted tap count.
    ChromePreferenceManager prefs = ChromePreferenceManager.getInstance();
    int adjustedTapsSinceOpen = prefs.getContextualSearchTapCount()
            - prefs.getContextualSearchTapQuickAnswerCount();
    TapSuppressionHeuristics tapHeuristics =
            new TapSuppressionHeuristics(this, mLastTapState, x, y, adjustedTapsSinceOpen);
    // TODO(donnd): Move to be called when the panel closes to work with states that change.
    tapHeuristics.logConditionState();
    // Tell the manager what it needs in order to log metrics on whether the tap would have
    // been suppressed if each of the heuristics were satisfied.
    mHandler.handleMetricsForWouldSuppressTap(tapHeuristics);

    boolean shouldSuppressTap = tapHeuristics.shouldSuppressTap();
    if (mTapTimeNanoseconds != 0) {
        // Remember the tap state for subsequent tap evaluation.
        mLastTapState =
                new ContextualSearchTapState(x, y, mTapTimeNanoseconds, shouldSuppressTap);
    } else {
        mLastTapState = null;
    }

    if (shouldSuppressTap) {
        mHandler.handleSuppressedTap();
    } else {
        mHandler.handleNonSuppressedTap();
    }
}
 

/**
 * Initialize an AsyncTask for getting menu title of opening a link in default browser.
 */
public static void initBrowserFetcher() {
    synchronized (sDirCreationLock) {
        if (sDefaultBrowserFetcher == null) {
            sDefaultBrowserFetcher = new AsyncTask<Void, Void, ArrayList<String>>() {
                @Override
                protected ArrayList<String> doInBackground(Void... params) {
                    Context context = ContextUtils.getApplicationContext();
                    ArrayList<String> menuTitles = new ArrayList<String>(2);
                    // Store the package label of current application.
                    menuTitles.add(
                            getTitleFromPackageLabel(context, BuildInfo.getPackageLabel()));

                    PackageManager pm = context.getPackageManager();
                    ResolveInfo info = getResolveInfoForViewIntent(pm);

                    // Caches whether Chrome is set as a default browser on the device.
                    boolean isDefault = (info != null && info.match != 0
                            && context.getPackageName().equals(info.activityInfo.packageName));
                    ChromePreferenceManager.getInstance().setCachedChromeDefaultBrowser(
                            isDefault);

                    // Check if there is a default handler for the Intent.  If so, store its
                    // label.
                    String packageLabel = null;
                    if (info != null && info.match != 0 && info.loadLabel(pm) != null) {
                        packageLabel = info.loadLabel(pm).toString();
                    }
                    menuTitles.add(getTitleFromPackageLabel(context, packageLabel));
                    return menuTitles;
                }
            };
            sDefaultBrowserFetcher.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
        }
    }
}
 

@Override
public void onCardBound(CardViewHolder cardViewHolder) {
    if (cardViewHolder.getAdapterPosition() == getNewTabPageAdapter().getFirstCardPosition()) {
        updatePeekingCard(cardViewHolder);
    } else {
        cardViewHolder.setNotPeeking();
    }

    // Animate the peeking card.
    // We only run if the feature is enabled and once per NTP.
    if (!shouldAnimateFirstCard()) return;
    mFirstCardAnimationRun = true;

    // We only want an animation to run if we are not scrolled.
    if (computeVerticalScrollOffset() != 0) return;

    // We only show the animation a certain number of times to a user.
    ChromePreferenceManager manager = ChromePreferenceManager.getInstance();
    int animCount = manager.getNewTabPageFirstCardAnimationRunCount();
    if (animCount > CardsVariationParameters.getFirstCardAnimationMaxRuns()) return;
    manager.setNewTabPageFirstCardAnimationRunCount(animCount + 1);

    // We do not show the animation if the user has previously seen it then scrolled.
    if (manager.getCardsImpressionAfterAnimation()) return;

    // The peeking card bounces up twice from its position.
    ObjectAnimator animator =
            ObjectAnimator.ofFloat(cardViewHolder.itemView, View.TRANSLATION_Y, 0f,
                    -mPeekingCardBounceDistance, 0f, -mPeekingCardBounceDistance, 0f);
    animator.setStartDelay(PEEKING_CARD_ANIMATION_START_DELAY_MS);
    animator.setDuration(PEEKING_CARD_ANIMATION_TIME_MS);
    animator.setInterpolator(PEEKING_CARD_INTERPOLATOR);
    animator.start();
}
 

@Override
public void onSnippetImpression() {
    // If the user has seen the first card animation and causes a snippet impression, remember
    // for future runs.
    if (!mFirstCardAnimationRun && !mCardImpressionAfterAnimationTracked) return;

    ChromePreferenceManager.getInstance().setCardsImpressionAfterAnimation(true);
    mCardImpressionAfterAnimationTracked = true;
}
 

/**
 * Check the cached value to figure out if the feature is enabled. We have to use the cached
 * value because native library may not yet been loaded.
 * @return Whether the feature is enabled.
 */
private static boolean isEnabledInPrefs() {
    // Will go away once the feature is enabled for everyone by default.
    StrictMode.ThreadPolicy oldPolicy = StrictMode.allowThreadDiskReads();
    try {
        return ChromePreferenceManager.getInstance().getCachedWebApkRuntimeEnabled();
    } finally {
        StrictMode.setThreadPolicy(oldPolicy);
    }
}
 

/**
 * Once native is loaded we can consult the command-line (set via about:flags) and also finch
 * state to see if we should enable WebAPKs.
 */
public static void cacheEnabledStateForNextLaunch() {
    ChromePreferenceManager preferenceManager = ChromePreferenceManager.getInstance();

    boolean wasEnabled = isEnabledInPrefs();
    boolean isEnabled = ChromeFeatureList.isEnabled(ChromeFeatureList.IMPROVED_A2HS);
    if (isEnabled != wasEnabled) {
        Log.d(TAG, "WebApk setting changed (%s => %s)", wasEnabled, isEnabled);
        preferenceManager.setCachedWebApkRuntimeEnabled(isEnabled);
    }
}
 

/**
 * ContextualSearchPolicy constructor.
 */
public ContextualSearchPolicy(ContextualSearchSelectionController selectionController,
        ContextualSearchNetworkCommunicator networkCommunicator) {
    mPreferenceManager = ChromePreferenceManager.getInstance();

    mSelectionController = selectionController;
    mNetworkCommunicator = networkCommunicator;
}
 

/** Hides the sign in promo and sets a preference to make sure it is not shown again. */
@Override
public void dismiss(Callback<String> itemRemovedCallback) {
    mDismissed = true;
    setVisible(false);

    ChromePreferenceManager.getInstance().setNewTabPageSigninPromoDismissed(true);
    mObserver.unregister();
    itemRemovedCallback.onResult(ContextUtils.getApplicationContext().getString(getHeader()));
}
 

/** @return Whether Chrome is the default browser on the device. */
private boolean isChromeDefaultHandler(Context context) {
    StrictMode.ThreadPolicy oldPolicy = StrictMode.allowThreadDiskReads();
    try {
        return ChromePreferenceManager.getInstance().getCachedChromeDefaultBrowser();
    } finally {
        StrictMode.setThreadPolicy(oldPolicy);
    }
}
 

/**
 * @return Whether or not chrome should attach the toolbar to the bottom of the screen.
 */
public static boolean isChromeHomeEnabled() {
    if (sChromeHomeEnabled == null) {
        ChromePreferenceManager manager =
                ChromePreferenceManager.getInstance(ContextUtils.getApplicationContext());
        sChromeHomeEnabled = manager.isChromeHomeEnabled();
    }

    return sChromeHomeEnabled;
}
 

/**
 * Caches which flavor of Herb the user prefers from native.
 */
private static void cacheHerbFlavor() {
    Context context = ContextUtils.getApplicationContext();
    if (isHerbDisallowed(context)) return;

    String oldFlavor = getHerbFlavor();

    // Check the experiment value before the command line to put the user in the correct group.
    // The first clause does the null checks so so we can freely use the startsWith() function.
    String newFlavor = FieldTrialList.findFullName(HERB_EXPERIMENT_NAME);
    Log.d(TAG, "Experiment flavor: " + newFlavor);
    if (!TextUtils.isEmpty(newFlavor)
            && newFlavor.startsWith(ChromeSwitches.HERB_FLAVOR_ELDERBERRY)) {
        newFlavor = ChromeSwitches.HERB_FLAVOR_ELDERBERRY;
    } else {
        newFlavor = ChromeSwitches.HERB_FLAVOR_DISABLED;
    }

    CommandLine instance = CommandLine.getInstance();
    if (instance.hasSwitch(ChromeSwitches.HERB_FLAVOR_DISABLED_SWITCH)) {
        newFlavor = ChromeSwitches.HERB_FLAVOR_DISABLED;
    } else if (instance.hasSwitch(ChromeSwitches.HERB_FLAVOR_ELDERBERRY_SWITCH)) {
        newFlavor = ChromeSwitches.HERB_FLAVOR_ELDERBERRY;
    }

    Log.d(TAG, "Caching flavor: " + newFlavor);
    sCachedHerbFlavor = newFlavor;

    if (!TextUtils.equals(oldFlavor, newFlavor)) {
        ChromePreferenceManager.getInstance().setCachedHerbFlavor(newFlavor);
    }
}
 

/**
 * Cache whether or not Chrome Home is enabled.
 */
public static void cacheChromeHomeEnabled() {
    // Chrome Home doesn't work with tablets.
    if (DeviceFormFactor.isTablet()) return;

    boolean isChromeHomeEnabled = ChromeFeatureList.isEnabled(ChromeFeatureList.CHROME_HOME);
    ChromePreferenceManager manager = ChromePreferenceManager.getInstance();
    boolean valueChanged = isChromeHomeEnabled != manager.isChromeHomeEnabled();
    manager.setChromeHomeEnabled(isChromeHomeEnabled);
    sChromeHomeEnabled = isChromeHomeEnabled;

    // If the cached value changed, restart chrome.
    if (valueChanged) ApplicationLifetime.terminate(true);
}
 

/**
 * Caches which flavor of Herb the user prefers from native.
 */
private static void cacheHerbFlavor() {
    Context context = ContextUtils.getApplicationContext();
    if (isHerbDisallowed(context)) return;

    String oldFlavor = getHerbFlavor();

    // Check the experiment value before the command line to put the user in the correct group.
    // The first clause does the null checks so so we can freely use the startsWith() function.
    String newFlavor = FieldTrialList.findFullName(HERB_EXPERIMENT_NAME);
    Log.d(TAG, "Experiment flavor: " + newFlavor);
    if (!TextUtils.isEmpty(newFlavor)
            && newFlavor.startsWith(ChromeSwitches.HERB_FLAVOR_ELDERBERRY)) {
        newFlavor = ChromeSwitches.HERB_FLAVOR_ELDERBERRY;
    } else {
        newFlavor = ChromeSwitches.HERB_FLAVOR_DISABLED;
    }

    CommandLine instance = CommandLine.getInstance();
    if (instance.hasSwitch(ChromeSwitches.HERB_FLAVOR_DISABLED_SWITCH)) {
        newFlavor = ChromeSwitches.HERB_FLAVOR_DISABLED;
    } else if (instance.hasSwitch(ChromeSwitches.HERB_FLAVOR_ELDERBERRY_SWITCH)) {
        newFlavor = ChromeSwitches.HERB_FLAVOR_ELDERBERRY;
    }

    Log.d(TAG, "Caching flavor: " + newFlavor);
    sCachedHerbFlavor = newFlavor;

    if (!TextUtils.equals(oldFlavor, newFlavor)) {
        ChromePreferenceManager.getInstance(context).setCachedHerbFlavor(newFlavor);
    }
}
 

/**
 * @return Whether or not chrome should attach the toolbar to the bottom of the screen.
 */
public static boolean isChromeHomeEnabled() {
    if (sChromeHomeEnabled == null) {
        sChromeHomeEnabled = ChromePreferenceManager.getInstance().isChromeHomeEnabled();
    }

    return sChromeHomeEnabled;
}
 

public static void recordSurfaceVisible() {
    if (!ChromePreferenceManager.getInstance().getSuggestionsSurfaceShown()) {
        RecordUserAction.record("Suggestions.FirstTimeSurfaceVisible");
        ChromePreferenceManager.getInstance().setSuggestionsSurfaceShown();
    }

    RecordUserAction.record("Suggestions.SurfaceVisible");
}
 

/**
 * Gets the singleton instance used to access the persistent counter.
 * @param prefsManager The ChromePreferenceManager to get prefs from.
 * @return the counter.
 */
static DisableablePromoTapCounter getInstance(
        ChromePreferenceManager prefsManager) {
    if (sInstance == null) {
        sInstance = new DisableablePromoTapCounter(prefsManager);
    }
    return sInstance;
}