Prototype handling of Intents in Custom Tabs

chrome/android/java/src/org/chromium/chrome/browser/ChromeApplication.java

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.chrome.browser;
 
 import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Looper;
 import android.os.SystemClock;
 import android.preference.PreferenceManager;
 import android.provider.Settings;
 import android.util.Log;
 import android.view.View;
 
 import com.google.ipc.invalidation.external.client.android.service.AndroidLogger;
 
 import org.chromium.base.ActivityState;
 import org.chromium.base.ApiCompatibilityUtils;
 import org.chromium.base.ApplicationState;
 import org.chromium.base.ApplicationStatus;
 import org.chromium.base.ApplicationStatus.ApplicationStateListener;
 import org.chromium.base.BuildInfo;
+import org.chromium.base.CommandLine;
 import org.chromium.base.CommandLineInitUtil;
 import org.chromium.base.PathUtils;
 import org.chromium.base.ResourceExtractor;
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.TraceEvent;
 import org.chromium.base.VisibleForTesting;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.SuppressFBWarnings;
 import org.chromium.base.library_loader.ProcessInitException;
 import org.chromium.base.metrics.RecordHistogram;
@@ skipping 20 matching lines @@
 import org.chromium.chrome.browser.metrics.VariationsSession;
 import org.chromium.chrome.browser.multiwindow.MultiWindowUtils;
 import org.chromium.chrome.browser.net.qualityprovider.ExternalEstimateProviderAndroid;
 import org.chromium.chrome.browser.net.spdyproxy.DataReductionProxySettings;
 import org.chromium.chrome.browser.notifications.NotificationUIManager;
 import org.chromium.chrome.browser.omaha.RequestGenerator;
 import org.chromium.chrome.browser.partnercustomizations.PartnerBrowserCustomizations;
 import org.chromium.chrome.browser.physicalweb.PhysicalWebBleClient;
 import org.chromium.chrome.browser.policy.PolicyAuditor;
 import org.chromium.chrome.browser.preferences.AccessibilityPreferences;
+import org.chromium.chrome.browser.preferences.ChromePreferenceManager;
 import org.chromium.chrome.browser.preferences.LocationSettings;
 import org.chromium.chrome.browser.preferences.PrefServiceBridge;
 import org.chromium.chrome.browser.preferences.Preferences;
 import org.chromium.chrome.browser.preferences.PreferencesLauncher;
 import org.chromium.chrome.browser.preferences.autofill.AutofillPreferences;
 import org.chromium.chrome.browser.preferences.password.SavePasswordsPreferences;
 import org.chromium.chrome.browser.preferences.privacy.PrivacyPreferences;
 import org.chromium.chrome.browser.preferences.website.SingleWebsitePreferences;
 import org.chromium.chrome.browser.printing.PrintingControllerFactory;
 import org.chromium.chrome.browser.rlz.RevenueStats;
@@ skipping 39 matching lines @@
     private static final String TAG = "ChromiumApplication";
     private static final String PREF_BOOT_TIMESTAMP =
             "com.google.android.apps.chrome.ChromeMobileApplication.BOOT_TIMESTAMP";
     private static final long BOOT_TIMESTAMP_MARGIN_MS = 1000;
     private static final String PREF_LOCALE = "locale";
     private static final float FLOAT_EPSILON = 0.001f;
     private static final String PRIVATE_DATA_DIRECTORY_SUFFIX = "chrome";
     private static final String DEV_TOOLS_SERVER_SOCKET_PREFIX = "chrome";
     private static final String SESSIONS_UUID_PREF_KEY = "chromium.sync.sessions.id";
 
+    private static boolean sIsFinishedCachingNativeFlags;
     private static DocumentTabModelSelector sDocumentTabModelSelector;
 
     /**
      * This class allows pausing scripts & network connections when we
      * go to the background and resume when we are back in foreground again.
      * TODO(pliard): Get rid of this class once JavaScript timers toggling is done directly on
      * the native side by subscribing to the system monitor events.
      */
     private static class BackgroundProcessing {
         private class SuspendRunnable implements Runnable {
@@ skipping 104 matching lines @@
      * onForegroundSessionEnd() is called, to handle changing top-level Chrome activities in one
      * foreground session.
      */
     public void onStartWithNative() {
         if (mIsStarted) return;
         mIsStarted = true;
 
         assert mIsProcessInitialized;
 
         onForegroundSessionStart();
+        cacheNativeFlags();
     }
 
     /**
      * Called when a top-level Chrome activity (ChromeTabbedActivity, FullscreenActivity) is
      * started in foreground. It will not be called again when other Chrome activities take over
      * (see onStart()), that is, when correct activity calls startActivity() for another Chrome
      * activity.
      */
     private void onForegroundSessionStart() {
         ChildProcessLauncher.onBroughtToForeground();
@@ skipping 581 matching lines @@
      * period of time.
      */
     private void updatePasswordEchoState() {
         boolean systemEnabled = Settings.System.getInt(
                 getApplicationContext().getContentResolver(),
                 Settings.System.TEXT_SHOW_PASSWORD, 1) == 1;
         if (PrefServiceBridge.getInstance().getPasswordEchoEnabled() == systemEnabled) return;
 
         PrefServiceBridge.getInstance().setPasswordEchoEnabled(systemEnabled);
     }
+
+    /**
+     * Caches flags that are needed by Activities that launch before the native library is loaded
+     * and stores them in SharedPreferences. Because of when this function is called, the browser

[Ian Wen, 2016/02/02 01:24:37]

Remove "of"?

[gone, 2016/02/02 01:59:42]

Reworded it.

+     * will need to be restarted before they take effect.
+     */
+    private void cacheNativeFlags() {
+        if (sIsFinishedCachingNativeFlags) return;
+
+        boolean isHerbEnabled =
+                CommandLine.getInstance().hasSwitch(ChromeSwitches.ENABLE_HERB_PROTOTYPE);
+        ChromePreferenceManager.getInstance(this).setIsHerbEnabled(isHerbEnabled);
+        sIsFinishedCachingNativeFlags = true;
+    }
 }