Move per context GL state to a separate object.

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 16 matching lines @@
     'command_buffer/service/buffer_manager.cc',
     'command_buffer/service/cmd_buffer_engine.h',
     'command_buffer/service/cmd_parser.cc',
     'command_buffer/service/cmd_parser.h',
     'command_buffer/service/command_buffer_service.cc',
     'command_buffer/service/command_buffer_service.h',
     'command_buffer/service/common_decoder.cc',
     'command_buffer/service/common_decoder.h',
     'command_buffer/service/context_group.h',
     'command_buffer/service/context_group.cc',
+    'command_buffer/service/context_state.h',
+    'command_buffer/service/context_state.cc',
     'command_buffer/service/feature_info.h',
     'command_buffer/service/feature_info.cc',
     'command_buffer/service/framebuffer_manager.h',
     'command_buffer/service/framebuffer_manager.cc',
     'command_buffer/service/gles2_cmd_copy_texture_chromium.cc',
     'command_buffer/service/gles2_cmd_copy_texture_chromium.h',
     'command_buffer/service/gles2_cmd_decoder.h',
     'command_buffer/service/gles2_cmd_decoder_autogen.h',
     'command_buffer/service/gles2_cmd_decoder.cc',
     'command_buffer/service/gles2_cmd_validation.h',
@@ skipping 48 matching lines @@
         '../build/linux/system.gyp:gtk',
       ],
     }],
     ['ui_compositor_image_transport==1', {
       'include_dirs': [
         '<(DEPTH)/third_party/angle/include',
       ],
     }],
   ],
 }