Changes to enable HTML5 autoplay for voice search.

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

 // Copyright 2012 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.graphics.Bitmap;
 import android.graphics.Color;
@@ skipping 81 matching lines @@
     private ContentViewCore mContentViewCore;
 
     /**
      * A list of TabBase observers.  These are used to broadcast TabBase events to listeners.
      */
     private final ObserverList<TabObserver> mObservers = new ObserverList<TabObserver>();
 
     // Content layer Observers and Delegates
     private ContentViewClient mContentViewClient;
     private WebContentsObserverAndroid mWebContentsObserver;
+    private VoiceSearchTabHelper mVoiceSearchTabHelper;
     private TabBaseChromeWebContentsDelegateAndroid mWebContentsDelegate;
 
     /**
      * A default {@link ChromeContextMenuItemDelegate} that supports some of the context menu
      * functionality.
      */
     protected class TabBaseChromeContextMenuItemDelegate
             extends EmptyChromeContextMenuItemDelegate {
         private final Clipboard mClipboard;
 
@@ skipping 505 matching lines @@
     protected void initContentView(long nativeWebContents) {
         NativePage previousNativePage = mNativePage;
         mNativePage = null;
         destroyNativePageInternal(previousNativePage);
 
         mContentView = ContentView.newInstance(mContext, nativeWebContents, getWindowAndroid());
 
         mContentViewCore = mContentView.getContentViewCore();
         mWebContentsDelegate = createWebContentsDelegate();
         mWebContentsObserver = new TabBaseWebContentsObserverAndroid(mContentViewCore);
+        mVoiceSearchTabHelper = new VoiceSearchTabHelper(mContentViewCore);
 
         if (mContentViewClient != null) mContentViewCore.setContentViewClient(mContentViewClient);
 
         assert mNativeTabAndroid != 0;
         nativeInitWebContents(
                 mNativeTabAndroid, mIncognito, mContentViewCore, mWebContentsDelegate,
                 new TabBaseContextMenuPopulator(createContextMenuPopulator()));
 
         // In the case where restoring a Tab or showing a prerendered one we already have a
         // valid infobar container, no need to recreate one.
@@ skipping 85 matching lines @@
 
         if (mInfoBarContainer != null && mInfoBarContainer.getParent() != null) {
             mInfoBarContainer.removeFromParentView();
         }
         if (mContentViewCore != null) mContentViewCore.destroy();
 
         mContentView = null;
         mContentViewCore = null;
         mWebContentsDelegate = null;
         mWebContentsObserver = null;
+        mVoiceSearchTabHelper = null;
 
         assert mNativeTabAndroid != 0;
         nativeDestroyWebContents(mNativeTabAndroid, deleteNativeWebContents);
     }
 
     /**
      * Gives subclasses the chance to clean up some state associated with this {@link ContentView}.
      * This is because {@link #getContentView()} can return {@code null} if a {@link NativePage}
      * is showing.
      * @param contentView The {@link ContentView} that should have associated state cleaned up.
@@ skipping 124 matching lines @@
     private native void nativeInitWebContents(long nativeTabAndroid, boolean incognito,
             ContentViewCore contentViewCore, ChromeWebContentsDelegateAndroid delegate,
             ContextMenuPopulator contextMenuPopulator);
     private native void nativeDestroyWebContents(long nativeTabAndroid, boolean deleteNative);
     private native Profile nativeGetProfileAndroid(long nativeTabAndroid);
     private native int nativeGetSecurityLevel(long nativeTabAndroid);
     private native void nativeSetActiveNavigationEntryTitleForUrl(long nativeTabAndroid, String url,
             String title);
     private native boolean nativePrint(long nativeTabAndroid);
 }