Switch on use of precompiled headers for VS 2008.

base/time_win.cc

Index: base/time_win.cc
diff --git a/base/time_win.cc b/base/time_win.cc
index 9bb04de7a47d19e1eabffd7343d2e90b6cba5405..f0799e559d06a12c5b8883851d56910f5ed3fd42 100644
--- a/base/time_win.cc
+++ b/base/time_win.cc
@@ -363,7 +363,15 @@ class HighResNowSingleton {
     if (!IsUsingHighResClock())
       return 0;
 
+#if defined(OS_WIN)
+    // The static_cast<long> is needed as a hint to VS 2008 to tell it
+    // which version of abs() to use. Other compilers don't seem to
+    // need it, including VS 2010, but to keep code identical between
+    // VS 2008 and 2010 we use the hint for all Windows builds.
+    return abs(static_cast<long>((UnreliableNow() - ReliableNow()) - skew_));

[brettw, 2011/09/15 18:03:15]

Is it possible to use this on all platforms and skip the ifdef? I'd prefer that
if it works, since it's one less thing that can get out of sync

+#else
     return abs((UnreliableNow() - ReliableNow()) - skew_);
+#endif
   }
 
  private: