Fix support for builds from build/ directory.

webkit/tools/layout_tests/layout_package/platform_utils_win.py

 # Copyright (c) 2006-2009 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.
 
 """This is the Linux implementation of the layout_package.platform_utils
    package. This file should only be imported by that package."""
 
 import path_utils
 import subprocess
 import sys
@@ skipping 119 matching lines @@
 #
 
 def _FindBinary(target, binary):
   """On Windows, we look for binaries that we compile in potentially
   two places: src/webkit/$target (preferably, which we get if we
   built using webkit.gyp), or src/chrome/$target (if compiled some other
   way)."""
   try:
     return path_utils.PathFromBase('webkit', target, binary)
   except path_utils.PathNotFound:
-    return path_utils.PathFromBase('chrome', target, binary)
+    try:
+      return path_utils.PathFromBase('chrome', target, binary)
+    except path_utils.PathNotFound:
+      return path_utils.PathFromBase('build', target, binary)