Change default timestamp to 64 bits in all webrtc directories.

webrtc/voice_engine/test/auto_test/voe_output_test.cc

 /*
  *  Copyright (c) 2015 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 165 matching lines @@
 
 #if defined(OPUS_FIXED_POINT)
   const int16_t kDtxBoundForSilence = 20;
 #else
   const int16_t kDtxBoundForSilence = 2;
 #endif
 
   OutputTest test(-kDtxBoundForSilence, kDtxBoundForSilence);
   Random random(1234ull);
 
-  uint32_t start_time = rtc::Time();
+  int64_t start_time = rtc::TimeMillis();
   test.Start();
   while (rtc::TimeSince(start_time) < kRuntimeMs) {
     webrtc::SleepMs(random.Rand(kUnmuteTimeMs - kUnmuteTimeMs / 10,
                                 kUnmuteTimeMs + kUnmuteTimeMs / 10));
     test.Mute();
     webrtc::SleepMs(kCheckAfterMute);
     test.EnableOutputCheck();
     webrtc::SleepMs(random.Rand(kCheckTimeMs - kCheckTimeMs / 10,
                                 kCheckTimeMs + kCheckTimeMs / 10));
     test.DisableOutputCheck();
     test.SetBitRate(random.Rand(kMinOpusRate, kMaxOpusRate));
     test.Unmute();
   }
 }
 
 }  // namespace voetest