Use PowerSaveBlocker for audio and video on Chrome OS.

extensions/browser/api/power/power_api_manager.h

 // Copyright 2014 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.
 
 #ifndef EXTENSIONS_BROWSER_API_POWER_POWER_API_MANAGER_H_
 #define EXTENSIONS_BROWSER_API_POWER_POWER_API_MANAGER_H_
 
 #include <map>
 #include <string>
 
@@ skipping 12 matching lines @@
 
 // Handles calls made via the chrome.power API. There is a separate instance of
 // this class for each profile, as requests are tracked by extension ID, but a
 // regular and incognito profile will share the same instance.
 // TODO(derat): Move this to power_api.h and rename it to PowerApi.
 class PowerApiManager : public BrowserContextKeyedAPI,
                         public extensions::ExtensionRegistryObserver {
  public:
   typedef base::Callback<scoped_ptr<content::PowerSaveBlocker>(
       content::PowerSaveBlocker::PowerSaveBlockerType,
+      content::PowerSaveBlocker::Reason,
       const std::string&)> CreateBlockerFunction;
 
   static PowerApiManager* Get(content::BrowserContext* context);
 
   // BrowserContextKeyedAPI implementation.
   static BrowserContextKeyedAPIFactory<PowerApiManager>* GetFactoryInstance();
 
   // Adds an extension lock at |level| for |extension_id|, replacing the
   // extension's existing lock, if any.
   void AddRequest(const std::string& extension_id,
@@ skipping 45 matching lines @@
   // that has an outstanding request.
   typedef std::map<std::string, core_api::power::Level> ExtensionLevelMap;
   ExtensionLevelMap extension_levels_;
 
   DISALLOW_COPY_AND_ASSIGN(PowerApiManager);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_POWER_POWER_API_MANAGER_H_