Use PowerSaveBlocker for audio and video on Chrome OS.

content/browser/media/webrtc_internals.cc

 // 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.
 
 #include "content/browser/media/webrtc_internals.h"
 
 #include "base/strings/string_number_conversions.h"
 #include "content/browser/media/webrtc_internals_ui_observer.h"
 #include "content/browser/web_contents/web_contents_view.h"
 #include "content/public/browser/browser_thread.h"
@@ skipping 359 matching lines @@
 void WebRTCInternals::CreateOrReleasePowerSaveBlocker() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   if (peer_connection_data_.empty() && power_save_blocker_) {
     DVLOG(1) << ("Releasing the block on application suspension since no "
                  "PeerConnections are active anymore.");
     power_save_blocker_.reset();
   } else if (!peer_connection_data_.empty() && !power_save_blocker_) {
     DVLOG(1) << ("Preventing the application from being suspended while one or "
                  "more PeerConnections are active.");
-    power_save_blocker_ = content::PowerSaveBlocker::Create(
-        content::PowerSaveBlocker::kPowerSaveBlockPreventAppSuspension,
-        "WebRTC has active PeerConnections.").Pass();
+    power_save_blocker_ =
+        content::PowerSaveBlocker::Create(
+            PowerSaveBlocker::kPowerSaveBlockPreventAppSuspension,
+            PowerSaveBlocker::kReasonOther,
+            "WebRTC has active PeerConnections").Pass();
   }
 }
 
 }  // namespace content