Rationalize dependency on khronos EGL headers in place of angle.

ui/surface/surface.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': 1,
   },
 
   'target_defaults': {
     'conditions': [
       ['use_x11 == 1', {
         'include_dirs': [
-          '<(DEPTH)/third_party/angle/include',
+          '<(DEPTH)/third_party/khronos',
         ],
       }],
       # TODO(ncarter): Does hlsl compilation belong in a shared location?
       ['OS == "win"', {
         'include_dirs': [
           '<(INTERMEDIATE_DIR)/hlsl',
         ],
         'rules': [
           {
             'variables': {
@@ skipping 81 matching lines @@
             'surface',
           ],
           'sources': [
             'accelerated_surface_transformer_win_unittest.cc',
           ],
         },
       ],
     }],
   ],
 }