Introduces chromium_resources.gyp to factor out Chrome resource generation

chrome/chrome_renderer.gypi

 # Copyright (c) 2011 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.
 
 {
   'targets': [
     {
       'target_name': 'renderer',
       'type': 'static_library',
       'dependencies': [
         'common',
         'common_net',
-        'chrome_resources',
-        'chrome_strings',
+        'chrome_resources.gyp:chrome_resources',
+        'chrome_resources.gyp:chrome_strings',
         'safe_browsing_proto',
         '../content/content.gyp:content_renderer',
         '../net/net.gyp:net',
         '../ppapi/ppapi_internal.gyp:ppapi_proxy',
         '../ppapi/ppapi_internal.gyp:ppapi_shared',
         '../printing/printing.gyp:printing',
         '../skia/skia.gyp:skia',
         '../third_party/cld/cld.gyp:cld',
         '../third_party/hunspell/hunspell.gyp:hunspell',
         '../third_party/icu/icu.gyp:icui18n',
@@ skipping 212 matching lines @@
               'export_dependent_settings': [
                 '<(allocator_target)',
               ],
             }],
           ],
         }],
       ],
     },
   ],
 }