Change default timestamp to 64 bits in all webrtc directories.

webrtc/pc/currentspeakermonitor.h

 /*
  *  Copyright 2011 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 36 matching lines @@
  public:
   CurrentSpeakerMonitor(AudioSourceContext* audio_source_context);
   ~CurrentSpeakerMonitor();
 
   void Start();
   void Stop();
 
   // Used by tests.  Note that the actual minimum time between switches
   // enforced by the monitor will be the given value plus or minus the
   // resolution of the system clock.
-  void set_min_time_between_switches(uint32_t min_time_between_switches);
+  void set_min_time_between_switches(int min_time_between_switches);
 
   // This is fired when the current speaker changes, and provides his audio
   // SSRC.  This only fires after the audio monitor on the underlying
   // AudioSourceContext has been started.
   sigslot::signal2<CurrentSpeakerMonitor*, uint32_t> SignalUpdate;
 
  private:
   void OnAudioMonitor(AudioSourceContext* audio_source_context,
                       const AudioInfo& info);
   void OnMediaStreamsUpdate(AudioSourceContext* audio_source_context,
@@ skipping 11 matching lines @@
     SS_WAS_SPEAKING_RECENTLY1,
     SS_WAS_SPEAKING_RECENTLY2
   };
 
   bool started_;
   AudioSourceContext* audio_source_context_;
   std::map<uint32_t, SpeakingState> ssrc_to_speaking_state_map_;
   uint32_t current_speaker_ssrc_;
   // To prevent overswitching, switching is disabled for some time after a
   // switch is made.  This gives us the earliest time a switch is permitted.
-  uint32_t earliest_permitted_switch_time_;
-  uint32_t min_time_between_switches_;
+  int64_t earliest_permitted_switch_time_;
+  int min_time_between_switches_;
 };
 
 }
 
 #endif  // TALK_SESSION_MEDIA_CURRENTSPEAKERMONITOR_H_