[Extensions] Convert some SyncExtensionFunctions

extensions/browser/api/power/power_api.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_H_
 #define EXTENSIONS_BROWSER_API_POWER_POWER_API_H_
 
 #include <map>
 #include <memory>
 #include <string>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "device/power_save_blocker/power_save_blocker.h"
 #include "extensions/browser/browser_context_keyed_api_factory.h"
 #include "extensions/browser/extension_function.h"
 #include "extensions/browser/extension_registry_observer.h"
 #include "extensions/common/api/power.h"
 
 namespace content {
 class BrowserContext;
 }
 
 namespace extensions {
 
 // Implementation of the chrome.power.requestKeepAwake API.
-class PowerRequestKeepAwakeFunction : public SyncExtensionFunction {
+class PowerRequestKeepAwakeFunction : public UIThreadExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("power.requestKeepAwake", POWER_REQUESTKEEPAWAKE)
 
  protected:
   ~PowerRequestKeepAwakeFunction() override {}
 
   // ExtensionFunction:
-  bool RunSync() override;
+  ResponseAction Run() override;
 };
 
 // Implementation of the chrome.power.releaseKeepAwake API.
-class PowerReleaseKeepAwakeFunction : public SyncExtensionFunction {
+class PowerReleaseKeepAwakeFunction : public UIThreadExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("power.releaseKeepAwake", POWER_RELEASEKEEPAWAKE)
 
  protected:
   ~PowerReleaseKeepAwakeFunction() override {}
 
   // ExtensionFunction:
-  bool RunSync() override;
+  ResponseAction Run() override;
 };
 
 // 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.
 class PowerAPI : public BrowserContextKeyedAPI,
                  public extensions::ExtensionRegistryObserver {
  public:
   typedef base::Callback<std::unique_ptr<device::PowerSaveBlocker>(
       device::PowerSaveBlocker::PowerSaveBlockerType,
@@ skipping 59 matching lines @@
   // that has an outstanding request.
   typedef std::map<std::string, api::power::Level> ExtensionLevelMap;
   ExtensionLevelMap extension_levels_;
 
   DISALLOW_COPY_AND_ASSIGN(PowerAPI);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_POWER_POWER_API_H_