[Android] A prototype of the interactive media notification.

chrome/android/java/src/org/chromium/chrome/browser/tab/ChromeTab.java

 // Copyright 2015 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.tab;
 
 import android.annotation.TargetApi;
 import android.app.ActivityManager;
 import android.content.Context;
 import android.content.Intent;
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 import org.chromium.chrome.browser.crash.MinidumpUploadService;
 import org.chromium.chrome.browser.document.DocumentUtils;
 import org.chromium.chrome.browser.dom_distiller.ReaderModeActivityDelegate;
 import org.chromium.chrome.browser.dom_distiller.ReaderModeManager;
 import org.chromium.chrome.browser.download.ChromeDownloadDelegate;
 import org.chromium.chrome.browser.externalnav.ExternalNavigationHandler;
 import org.chromium.chrome.browser.externalnav.ExternalNavigationHandler.OverrideUrlLoadingResult;
 import org.chromium.chrome.browser.externalnav.ExternalNavigationParams;
 import org.chromium.chrome.browser.fullscreen.FullscreenManager;
 import org.chromium.chrome.browser.media.MediaNotificationService;
+import org.chromium.chrome.browser.media.ui.MediaSessionTabHelper;
 import org.chromium.chrome.browser.net.spdyproxy.DataReductionProxySettings;
 import org.chromium.chrome.browser.ntp.NativePageAssassin;
 import org.chromium.chrome.browser.ntp.NativePageFactory;
 import org.chromium.chrome.browser.omnibox.geo.GeolocationHeader;
 import org.chromium.chrome.browser.policy.PolicyAuditor;
 import org.chromium.chrome.browser.policy.PolicyAuditor.AuditEvent;
 import org.chromium.chrome.browser.preferences.PrefServiceBridge;
 import org.chromium.chrome.browser.rlz.RevenueStats;
 import org.chromium.chrome.browser.search_engines.TemplateUrlService;
 import org.chromium.chrome.browser.tab.BackgroundContentViewHelper.BackgroundContentViewDelegate;
@@ skipping 27 matching lines @@
 
 import java.util.Locale;
 
 /**
  * A representation of a Tab for Chrome. This manages wrapping a WebContents and interacting with
  * most of Chromium while representing a consistent version of web content to the front end.
  */
 public class ChromeTab extends Tab {
     public static final int NTP_TAB_ID = -2;
 
-    private static final String TAG = "ChromeTab";
+    private static final String TAG = "cr.ChromeTab";
 
     // URL didFailLoad error code. Should match the value in net_error_list.h.
     public static final int BLOCKED_BY_ADMINISTRATOR = -22;
 
     public static final String PAGESPEED_PASSTHROUGH_HEADERS =
             "Chrome-Proxy: pass-through\nCache-Control: no-cache";
 
     private static final int MSG_ID_ENABLE_FULLSCREEN_AFTER_LOAD = 1;
 
     /** The maximum amount of time to wait for a page to load before entering fullscreen.  -1 means
@@ skipping 135 matching lines @@
             CipherFactory.getInstance().triggerKeyGeneration();
         }
 
         mReaderModeManager = new ReaderModeManager(this, activity);
         RevenueStats.getInstance().tabCreated(this);
 
         mTabRedirectHandler = new TabRedirectHandler(activity);
 
         ContextualSearchTabHelper.createForTab(this);
         if (nativeWindow != null) ThumbnailTabHelper.createForTab(this);
+        MediaSessionTabHelper.createForTab(this);
     }
 
     /**
      * Creates a minimal {@link ChromeTab} for testing. Do not use outside testing.
      *
      * @param id        The id of the tab.
      * @param incognito Whether the tab is incognito.
      */
     @VisibleForTesting
     public ChromeTab(int id, boolean incognito) {
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                 didFinishPageLoad();
             }
         }
     };
 
     @VisibleForTesting
     public OverrideUrlLoadingResult getLastOverrideUrlLoadingResultForTests() {
         return mLastOverrideUrlLoadingResult;
     }
 }