Remove DCHECKS from official builds....

build/internal/release_impl_official.scons

 # Copyright (c) 2006-2008 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.
 
 __doc__ = """
 Release settings for official Chromium builds.
 """
 
 Import("env")
 
@@ skipping 10 matching lines @@
           '/ltcg',
       ],
       CCFLAGS = [
           '/Ob2',   # VCCLCompilerTool.InlineFunctionExpansion="2"
           '/Oi',    # VCCLCompilerTool.EnableIntrinsicFunctions="true"
           '/Os',    # VCCLCompilerTool.FavorSizeOrSpeed="2"
           '/Ox',    # VCCLCompilerTool.OmitFramePointers="true"
           '/GT',    # VCCLCompilerTool.EnableFiberSafeOptimizations="true"
           '/GL',    # VCCLCompilerTool.WholeProgramOptimization="true"
       ],
+      CPPDEFINES = [
+        'OFFICIAL_BUILD',

[sgk, 2008/12/11 21:54:39]

Nit:  Google Python style is to indent this four spaces, not two.  (Two spaces
is only for flow-control blocks.)

+      ],
       LINKFLAGS = [
           '/LTCG',  # VCLinkerTool.LinkTimeCodeGeneration="1"
       ],
   )