Use PowerSaveBlocker for audio and video on Chrome OS.

extensions/browser/api/power/power_api_manager.cc

 // 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.
 
 #include "extensions/browser/api/power/power_api_manager.h"
 
 #include "base/bind.h"
 #include "base/lazy_instance.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/common/extension.h"
 
 namespace extensions {
 
 namespace {
 
-const char kPowerSaveBlockerReason[] = "extension";
+const char kPowerSaveBlockerDescription[] = "extension";
 
 content::PowerSaveBlocker::PowerSaveBlockerType
 LevelToPowerSaveBlockerType(core_api::power::Level level) {
   switch (level) {
     case core_api::power::LEVEL_SYSTEM:
       return content::PowerSaveBlocker::kPowerSaveBlockPreventAppSuspension;
     case core_api::power::LEVEL_DISPLAY:  // fallthrough
     case core_api::power::LEVEL_NONE:
       return content::PowerSaveBlocker::kPowerSaveBlockPreventDisplaySleep;
   }
@@ skipping 64 matching lines @@
       new_level = it->second;
   }
 
   // If the level changed and we need to create a new blocker, do a swap
   // to ensure that there isn't a brief period where power management is
   // unblocked.
   if (!power_save_blocker_ || new_level != current_level_) {
     content::PowerSaveBlocker::PowerSaveBlockerType type =
         LevelToPowerSaveBlockerType(new_level);
     scoped_ptr<content::PowerSaveBlocker> new_blocker(
-        create_blocker_function_.Run(type, kPowerSaveBlockerReason));
+        create_blocker_function_.Run(type,
+                                     content::PowerSaveBlocker::kReasonOther,
+                                     kPowerSaveBlockerDescription));
     power_save_blocker_.swap(new_blocker);
     current_level_ = new_level;
   }
 }
 
 void PowerApiManager::Shutdown() {
   // Unregister here rather than in the d'tor; otherwise this call will recreate
   // the already-deleted ExtensionRegistry.
   ExtensionRegistry::Get(browser_context_)->RemoveObserver(this);
   power_save_blocker_.reset();
 }
 
 }  // namespace extensions