Some changes to allow recipes and modules to live noncentrally

scripts/slave/recipe_modules/libyuv/gclient_config.py

 # Copyright 2014 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.
 
-from RECIPE_MODULES.gclient import CONFIG_CTX
-from slave.recipe_modules.gclient.config import ChromiumGitURL
+import DEPS
+CONFIG_CTX = DEPS['gclient'].CONFIG_CTX
+ChromiumGitURL = DEPS['gclient'].config.ChromiumGitURL
 
 
 @CONFIG_CTX()
 def libyuv(c):
   s = c.solutions.add()
   s.name = 'src'
   s.url = ChromiumGitURL(c, 'external', 'libyuv')
   s.deps_file = 'DEPS'
   s.custom_vars['root_dir'] = 'src'
 
 @CONFIG_CTX(includes=['libyuv', 'android'])
 def libyuv_android(c):
   pass
 
 @CONFIG_CTX(includes=['libyuv'])
 def libyuv_ios(c):
   c.target_os.add('mac')
   c.target_os.add('ios')
 
 @CONFIG_CTX(includes=['libyuv'])
 def libyuv_valgrind(c):
   c.solutions[0].custom_deps['src/chromium/src/third_party/valgrind'] = \
       ChromiumGitURL(c, 'chromium', 'deps', 'valgrind', 'binaries')