Ensure that include paths used by webkit_compositor_bindings work in WebKit as well.

webkit/compositor_bindings/compositor_bindings.gyp

 # Copyright (c) 2012 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.
 
 {
   'variables': {
     'chromium_code': 0,
     'use_libcc_for_compositor%': 0,
     'webkit_compositor_bindings_sources': [
       'CCThreadImpl.cpp',
@@ skipping 49 matching lines @@
       'type': 'static_library',
       'dependencies': [
         '../../skia/skia.gyp:skia',
       ],
       'sources': [
         'web_compositor_support_impl.cc',
         'web_compositor_support_impl.h',
       ],
       'include_dirs': [
         '../..',
+        '<(webkit_src_dir)',
         '<(webkit_src_dir)/Source/Platform/chromium',
       ],
       'conditions': [
         ['use_libcc_for_compositor==1', {
           'include_dirs': [
             '../../cc',
             '../../cc/stubs',
           ],
           'dependencies': [
             'webkit_compositor_bindings',
@@ skipping 35 matching lines @@
               'defines': [
                 'WEBKIT_DLL',
               ],
             }],
           ]
         },
       ],
     }],
   ],
 }