Using $CHROME_SRC_DIR in place of hash/.....

chrome/common/SConscript

 # 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.
 
 Import('env', 'env_test')
 
 env = env.Clone()
 
 env.Prepend(
     CPPPATH = [
         '$CHROME_DIR/app/resources',
         '#/tools/build/win',
-        '#/..',
+        '$CHROME_SRC_DIR',
     ],
     CPPDEFINES = [
         'U_STATIC_IMPLEMENTATION',
     ],
 )
 
 if env['PLATFORM'] == 'win32':
   env.Prepend(
       CCFLAGS = [
           '/TP',
@@ skipping 100 matching lines @@
   env.ChromeStaticLibrary('common', input_files)
 
 
 env_test = env_test.Clone()
 
 env_test.Append(
     CPPPATH = [
         '$SKIA_DIR/include',
         '$SKIA_DIR/include/corecg',
         '$SKIA_DIR/platform',
-        '#/..',
+        '$CHROME_SRC_DIR',
         '$GTEST_DIR/include',
     ],
     LIBS = [
         'base',
         'gtest',
         env_test['ICU_LIBS'],  # TODO(sgk):  '$ICU_LIBS' when scons is fixed
     ],
 )
 
 if env_test['PLATFORM'] == 'win32':
@@ skipping 30 matching lines @@
 
   libs = [
       'common.lib',
   ]
 
   ipc_tests = env_test.ChromeTestProgram('ipc_tests', ipc_tests_files + libs)
 
   i = env_test.Install('$TARGET_ROOT', ipc_tests)
   Alias('chrome', i)