Keep playing audio even when opening another tab, going to another app etc.

webkit/support/webkit_support.cc

 // Copyright (c) 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.
 
 #include "webkit/support/webkit_support.h"
 
 #include "base/at_exit.h"
 #include "base/base64.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 430 matching lines @@
 
 WebKit::WebMediaPlayer* CreateMediaPlayer(
     WebFrame* frame,
     const WebURL& url,
     WebMediaPlayerClient* client) {
   return CreateMediaPlayer(frame, url, client, NULL);
 }
 
 #if defined(OS_ANDROID)
 void ReleaseMediaResources() {
-  test_environment->media_player_manager()->ReleaseMediaResources();
+  test_environment->media_player_manager()->ReleaseMediaResourcesIfNotPlaying();
 }
 #endif
 
 WebKit::WebApplicationCacheHost* CreateApplicationCacheHost(
     WebFrame*, WebKit::WebApplicationCacheHostClient* client) {
   return SimpleAppCacheSystem::CreateApplicationCacheHost(client);
 }
 
 WebKit::WebStorageNamespace* CreateSessionStorageNamespace(unsigned quota) {
   return SimpleDomStorageSystem::instance().CreateSessionStorageNamespace();
@@ skipping 407 matching lines @@
 // Logging
 void EnableWebCoreLogChannels(const std::string& channels) {
   webkit_glue::EnableWebCoreLogChannels(channels);
 }
 
 void SetGamepadData(const WebKit::WebGamepads& pads) {
   test_environment->webkit_platform_support()->setGamepadData(pads);
 }
 
 }  // namespace webkit_support