gpu: Add support for GLX_EXT_texture_from_pixmap extension.

gpu/command_buffer_service.gypi

 # 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.
 
 {
   'include_dirs': [
     '..',
     '<(DEPTH)/third_party/khronos',
   ],
   'all_dependent_settings': {
@@ skipping 39 matching lines @@
     'command_buffer/service/gles2_cmd_validation_autogen.h',
     'command_buffer/service/gles2_cmd_validation_implementation_autogen.h',
     'command_buffer/service/gl_utils.h',
     'command_buffer/service/gpu_scheduler.h',
     'command_buffer/service/gpu_scheduler.cc',
     'command_buffer/service/gpu_scheduler_mock.h',
     'command_buffer/service/gpu_switches.h',
     'command_buffer/service/gpu_switches.cc',
     'command_buffer/service/id_manager.h',
     'command_buffer/service/id_manager.cc',
+    'command_buffer/service/image_manager.cc',
+    'command_buffer/service/image_manager.h',
     'command_buffer/service/mailbox_manager.cc',
     'command_buffer/service/mailbox_manager.h',
     'command_buffer/service/memory_program_cache.h',
     'command_buffer/service/memory_program_cache.cc',
     'command_buffer/service/mocks.h',
     'command_buffer/service/program_manager.h',
     'command_buffer/service/program_manager.cc',
     'command_buffer/service/query_manager.h',
     'command_buffer/service/query_manager.cc',
     'command_buffer/service/renderbuffer_manager.h',
@@ skipping 27 matching lines @@
         '../build/linux/system.gyp:gtk',
       ],
     }],
     ['ui_compositor_image_transport==1', {
       'include_dirs': [
         '<(DEPTH)/third_party/angle/include',
       ],
     }],
   ],
 }