Makes GetBuildTime behave identically on all build types.

base/build_time.cc

Index: base/build_time.cc
diff --git a/base/build_time.cc b/base/build_time.cc
index b8b42966908fb47e696f01a2709bb9a90f2bd448..6f496f2efd2a9c482151911d8ecad02873935ce3 100644
--- a/base/build_time.cc
+++ b/base/build_time.cc
@@ -4,6 +4,9 @@
 
 #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"
 
@@ -11,17 +14,9 @@ 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;
 }