Reland of 'Move content/browser/power_save_blocker to //device/power_save_blocker'

content/browser/media/webrtc/webrtc_internals.h

 // Copyright (c) 2013 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 CONTENT_BROWSER_MEDIA_WEBRTC_WEBRTC_INTERNALS_H_
 #define CONTENT_BROWSER_MEDIA_WEBRTC_WEBRTC_INTERNALS_H_
 
 #include <memory>
 #include <queue>
 
 #include "base/containers/hash_tables.h"
 #include "base/gtest_prod_util.h"
 #include "base/lazy_instance.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "base/process/process.h"
 #include "base/threading/thread_checker.h"
 #include "base/values.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/render_process_host_observer.h"
 #include "ui/shell_dialogs/select_file_dialog.h"
 
+namespace device {
+class PowerSaveBlocker;
+}  // namespace device
+
 namespace content {
 
-class PowerSaveBlocker;
 class WebContents;
 class WebRTCInternalsUIObserver;
 
 // This is a singleton class running in the browser UI thread.
 // It collects peer connection infomation from the renderers,
 // forwards the data to WebRTCInternalsUIObserver and
 // sends data collecting commands to the renderers.
 class CONTENT_EXPORT WebRTCInternals : public RenderProcessHostObserver,
                                        public ui::SelectFileDialog::Listener {
  public:
@@ skipping 159 matching lines @@
   base::FilePath audio_debug_recordings_file_path_;
 
   // Diagnostic event log recording state.
   bool event_log_recordings_;
   bool selecting_event_log_;
   base::FilePath event_log_recordings_file_path_;
 
   // While |peer_connection_data_| is non-empty, hold an instance of
   // PowerSaveBlocker.  This prevents the application from being suspended while
   // remoting.
-  std::unique_ptr<PowerSaveBlocker> power_save_blocker_;
+  std::unique_ptr<device::PowerSaveBlocker> power_save_blocker_;
 
   // Set of render process hosts that |this| is registered as an observer on.
   base::hash_set<int> render_process_id_set_;
 
   // Used to bulk up updates that we send to javascript.
   // The class owns the value/dictionary and command name of an update.
   // For each update, a PendingUpdate is stored in the |pending_updates_| queue
   // and deleted as soon as the update has been delivered.
   // The class is moveble and not copyable to avoid copying while still allowing
   // us to use an stl container without needing scoped_ptr or similar.
@@ skipping 19 matching lines @@
   std::queue<PendingUpdate> pending_updates_;
   const int aggregate_updates_ms_;
 
   // Weak factory for this object that we use for bulking up updates.
   base::WeakPtrFactory<WebRTCInternals> weak_factory_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_MEDIA_WEBRTC_WEBRTC_INTERNALS_H_