Fix duplicate OFFICIAL_BUILD macros.

chrome/common/chrome_version_info.cc

Index: chrome/common/chrome_version_info.cc
diff --git a/chrome/common/chrome_version_info.cc b/chrome/common/chrome_version_info.cc
index 53ac92a349bd1a33bec48be1f6b33e5790784c12..20124bc2be2ff4b3f177fe8c84204998bcbd9678 100644
--- a/chrome/common/chrome_version_info.cc
+++ b/chrome/common/chrome_version_info.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 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.
 
@@ -86,7 +86,7 @@ std::string VersionInfo::LastChange() const {
 }
 
 bool VersionInfo::IsOfficialBuild() const {
-  return OFFICIAL_BUILD;
+  return IS_OFFICIAL_BUILD;
 }
 
 #endif