Make MediaPlayerEventRouter a PKS to decouple it from ExtensionService

chrome/browser/extensions/extension_service.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 "chrome/browser/extensions/extension_service.h"
 
 #include <algorithm>
 #include <iterator>
 #include <set>
 
@@ skipping 95 matching lines @@
 #include "googleurl/src/gurl.h"
 #include "grit/generated_resources.h"
 #include "net/base/registry_controlled_domains/registry_controlled_domain.h"
 #include "sync/api/sync_change.h"
 #include "sync/api/sync_error_factory.h"
 #include "webkit/database/database_tracker.h"
 #include "webkit/database/database_util.h"
 
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/chromeos/cros/cros_library.h"
-#include "chrome/browser/chromeos/extensions/media_player_event_router.h"
 #include "chrome/browser/chromeos/input_method/input_method_manager.h"
 #include "content/public/browser/storage_partition.h"
 #include "webkit/fileapi/file_system_context.h"
 #include "webkit/fileapi/file_system_mount_point_provider.h"
 #endif
 
 using content::BrowserContext;
 using content::BrowserThread;
 using content::DevToolsAgentHost;
 using content::PluginService;
@@ skipping 390 matching lines @@
 
 void ExtensionService::InitEventRouters() {
   if (event_routers_initialized_)
     return;
 
 #if defined(ENABLE_EXTENSIONS)
   browser_event_router_.reset(new extensions::BrowserEventRouter(profile_));
 
   extensions::ProfileKeyedAPIFactory<extensions::PushMessagingAPI>::
       GetForProfile(profile_);
-
-#if defined(OS_CHROMEOS)
-
-  ExtensionMediaPlayerEventRouter::GetInstance()->Init(profile_);
-#endif  // defined(OS_CHROMEOS)
 #endif  // defined(ENABLE_EXTENSIONS)
   event_routers_initialized_ = true;
 }
 
 void ExtensionService::Shutdown() {
   // Do nothing for now.
 }
 
 const Extension* ExtensionService::GetExtensionById(
     const std::string& id, bool include_disabled) const {
@@ skipping 2583 matching lines @@
     scoped_refptr<const Extension> extension = GetInstalledExtension(*it);
     DCHECK(extension);
     if (!extension)
       continue;
     blacklisted_extensions_.Insert(extension);
     UnloadExtension(*it, extension_misc::UNLOAD_REASON_BLACKLIST);
   }
 
   IdentifyAlertableExtensions();
 }