Makes GetBuildTime behave identically on all build types.

base/build_time.cc

 // Copyright (c) 2011 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 "base/build_time.h"
 
+// Imports the generated build date, i.e. BUILD_DATE.
+#include "base/generated_build_date.h"
+
 #include "base/logging.h"
 #include "base/time/time.h"
 
 namespace base {
 
 Time GetBuildTime() {
   Time integral_build_time;
-  // The format of __DATE__ and __TIME__ is specified by the ANSI C Standard,
-  // section 6.8.8.
-  //
-  // __DATE__ is exactly "Mmm DD YYYY".
-  // __TIME__ is exactly "hh:mm:ss".
-#if defined(DONT_EMBED_BUILD_METADATA) && !defined(OFFICIAL_BUILD)
-  const char kDateTime[] = "Sep 02 2008 08:00:00 PST";
-#else
-  const char kDateTime[] = __DATE__ " " __TIME__ " PST";
-#endif
-  bool result = Time::FromString(kDateTime, &integral_build_time);
+  // BUILD_DATE is exactly "Mmm DD YYYY".
+  const char kDateTime[] = BUILD_DATE " 05:00:00";

[M-A Ruel, 2016/02/09 00:14:13]

Why 5?

[Zachary Forman, 2016/02/09 00:47:18]

Arbitrary decision based on Thakis' suggestion of
I think it makes sense to use something not midnight (so we don't get caught by
some weird edge case).

+  bool result = Time::FromUTCString(kDateTime, &integral_build_time);
   DCHECK(result);
   return integral_build_time;
 }
 
 }  // namespace base