Roll clang to r124477.

Also reenable OVERRIDE.

BUG=71088
TEST=none

Review URL: http://codereview.chromium.org/6250188

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@73994 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: ad67f979e1b4c0a8e61065681a4b6594d6570067
diff --git a/base/compiler_specific.h b/base/compiler_specific.h
index fd2b083..3060306 100644
--- a/base/compiler_specific.h
+++ b/base/compiler_specific.h
@@ -84,9 +84,8 @@
 //   virtual void foo() OVERRIDE;
 #if defined(COMPILER_MSVC)
 #define OVERRIDE override
-// TODO(thakis): Reenable this, http://crbug.com/71088
-//#elif defined(__clang__)
-//#define OVERRIDE __attribute__((override))
+#elif defined(__clang__)
+#define OVERRIDE override
 #else
 #define OVERRIDE
 #endif