Modify Chromoting logging to hook into base logging.

remoting/base/util.cc

Index: remoting/base/util.cc
diff --git a/remoting/base/util.cc b/remoting/base/util.cc
index 2e7d7df8d942bf2ac3974176c3e3eb02856b332a..458a745f1b208d1277717a5bd143a293805f43f1 100644
--- a/remoting/base/util.cc
+++ b/remoting/base/util.cc
@@ -2,16 +2,32 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "base/logging.h"
+#include "base/stringprintf.h"
 #include "media/base/video_frame.h"
 #include "media/base/yuv_convert.h"
 #include "remoting/base/util.h"
 
-#include "base/logging.h"
-
 using media::VideoFrame;
 
 namespace remoting {
 
+std::string GetTimestampString() {
+  // This code is modeled after the timestamp code in LogMessage::Init() (in
+  // base/logging.cc).
+  time_t t = time(NULL);
+  struct tm local_time = {0};
+#if _MSC_VER >= 1400
+  localtime_s(&local_time, &t);
+#else
+  localtime_r(&t, &local_time);
+#endif
+  struct tm* tm_time = &local_time;
+  return StringPrintf("%02d%02d/%02d%02d%02d:",
+                      1 + tm_time->tm_mon, tm_time->tm_mday,
+                      tm_time->tm_hour, tm_time->tm_min, tm_time->tm_sec);
+}
+
 int GetBytesPerPixel(VideoFrame::Format format) {
   // Note: The order is important here for performance. This is sorted from the
   // most common to the less common (PIXEL_FORMAT_ASCII is mostly used