Revert of Move content/browser/power_save_blocker to //device/power_save_blocker

content/browser/media/webrtc/webrtc_internals.h

Index: content/browser/media/webrtc/webrtc_internals.h
diff --git a/content/browser/media/webrtc/webrtc_internals.h b/content/browser/media/webrtc/webrtc_internals.h
index ddcb67142910329916883f0ea8ba5960bec94d45..e319313df2db8a47b130ca3404f173da82b5f6e1 100644
--- a/content/browser/media/webrtc/webrtc_internals.h
+++ b/content/browser/media/webrtc/webrtc_internals.h
@@ -20,12 +20,9 @@
 #include "content/public/browser/render_process_host_observer.h"
 #include "ui/shell_dialogs/select_file_dialog.h"
 
-namespace device {
+namespace content {
+
 class PowerSaveBlocker;
-}  // namespace device
-
-namespace content {
-
 class WebContents;
 class WebRTCInternalsUIObserver;
 
@@ -205,7 +202,7 @@
   // While |peer_connection_data_| is non-empty, hold an instance of
   // PowerSaveBlocker.  This prevents the application from being suspended while
   // remoting.
-  std::unique_ptr<device::PowerSaveBlocker> power_save_blocker_;
+  std::unique_ptr<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_;