Change default timestamp to 64 bits in all webrtc directories.

webrtc/base/logging_unittest.cc

 /*
  *  Copyright 2004 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 120 matching lines @@
 TEST(LogTest, Perf) {
   Pathname path;
   EXPECT_TRUE(Filesystem::GetTemporaryFolder(path, true, NULL));
   path.SetPathname(Filesystem::TempFilename(path, "ut"));
 
   LogSinkImpl<FileStream> stream;
   EXPECT_TRUE(stream.Open(path.pathname(), "wb", NULL));
   stream.DisableBuffering();
   LogMessage::AddLogToStream(&stream, LS_SENSITIVE);
 
-  uint32_t start = Time(), finish;
+  int64_t start = TimeMillis(), finish;
   std::string message('X', 80);
   for (int i = 0; i < 1000; ++i) {
     LOG(LS_SENSITIVE) << message;
   }
-  finish = Time();
+  finish = TimeMillis();
 
   LogMessage::RemoveLogToStream(&stream);
   stream.Close();
   Filesystem::DeleteFile(path);
 
-  LOG(LS_INFO) << "Average log time: " << TimeDiff(finish, start) << " us";
+  LOG(LS_INFO) << "Average log time: " << TimeDiff(finish, start) << " ms";
 }
 
 }  // namespace rtc