Move content/browser/power_save_blocker to //device/power_save_blocker

device/power_save_blocker/power_save_blocker.h

 // 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.
 
-#ifndef CONTENT_PUBLIC_BROWSER_POWER_SAVE_BLOCKER_H_
-#define CONTENT_PUBLIC_BROWSER_POWER_SAVE_BLOCKER_H_
+#ifndef DEVICE_POWER_SAVE_BLOCKER_POWER_SAVE_BLOCKER_H_
+#define DEVICE_POWER_SAVE_BLOCKER_POWER_SAVE_BLOCKER_H_
 
 #include <memory>
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "base/sequenced_task_runner.h"
 #include "base/single_thread_task_runner.h"
-#include "content/common/content_export.h"
+#include "device/power_save_blocker/power_save_blocker_export.h"
 
-namespace content {
+namespace device {
 
 // A RAII-style class to block the system from entering low-power (sleep) mode.
 // This class is thread-safe; it may be constructed and deleted on any thread.
-class CONTENT_EXPORT PowerSaveBlocker {
+class DEVICE_POWER_SAVE_BLOCKER_EXPORT PowerSaveBlocker {

[jam, 2016/06/16 17:04:04]

(can do this in a followup)

now that it's moved out of content, there's no need to have an interface and an
impl class. this was done because it was in content so we had to have a public
interface in content/public.

[scottmg, 2016/06/16 18:10:34]

That sounds good, I was thinking the same thing. I'll do that in a followup.

  public:
   enum PowerSaveBlockerType {
     // Prevent the application from being suspended. On some platforms, apps may
     // be suspended when they are not visible to the user. This type of block
     // requests that the app continue to run in that case, and on all platforms
     // prevents the system from sleeping.
     // Example use cases: downloading a file, playing audio.
     kPowerSaveBlockPreventAppSuspension,
 
     // Prevent the display from going to sleep. This also has the side effect of
@@ skipping 21 matching lines @@
   // the blocking) may be provided to the underlying system APIs on some
   // platforms.
   static std::unique_ptr<PowerSaveBlocker> CreateWithTaskRunners(
       PowerSaveBlockerType type,
       Reason reason,
       const std::string& description,
       scoped_refptr<base::SequencedTaskRunner> ui_task_runner,
       scoped_refptr<base::SingleThreadTaskRunner> file_task_runner);
 };
 
-}  // namespace content
+}  // namespace device
 
-#endif  // CONTENT_PUBLIC_BROWSER_POWER_SAVE_BLOCKER_H_
+#endif  // DEVICE_POWER_SAVE_BLOCKER_POWER_SAVE_BLOCKER_H_