Implement TransformFeedbackManager in GPU command buffer.

gpu/gpu.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': {
     'nacl_win64_target': 0,
     'build_angle_deqp_tests%': 0,
   },
   'includes': [
@@ skipping 223 matching lines @@
         'command_buffer/service/gles2_cmd_decoder_unittest_drawing.cc',
         'command_buffer/service/gles2_cmd_decoder_unittest_extensions.cc',
         'command_buffer/service/gles2_cmd_decoder_unittest_extensions_autogen.h',
         'command_buffer/service/gles2_cmd_decoder_unittest_framebuffers.cc',
         'command_buffer/service/gles2_cmd_decoder_unittest_programs.cc',
         'command_buffer/service/gles2_cmd_decoder_unittest_textures.cc',
         'command_buffer/service/gpu_service_test.cc',
         'command_buffer/service/gpu_service_test.h',
         'command_buffer/service/gpu_tracer_unittest.cc',
         'command_buffer/service/id_manager_unittest.cc',
+        'command_buffer/service/indexed_buffer_binding_host_unittest.cc',
         'command_buffer/service/mailbox_manager_unittest.cc',
         'command_buffer/service/memory_program_cache_unittest.cc',
         'command_buffer/service/mocks.cc',
         'command_buffer/service/mocks.h',
         'command_buffer/service/path_manager_unittest.cc',
         'command_buffer/service/program_cache_unittest.cc',
         'command_buffer/service/program_manager_unittest.cc',
         'command_buffer/service/query_manager_unittest.cc',
         'command_buffer/service/renderbuffer_manager_unittest.cc',
         'command_buffer/service/shader_manager_unittest.cc',
         'command_buffer/service/shader_translator_cache_unittest.cc',
         'command_buffer/service/shader_translator_unittest.cc',
         'command_buffer/service/sync_point_manager_unittest.cc',
         'command_buffer/service/test_helper.cc',
         'command_buffer/service/test_helper.h',
         'command_buffer/service/texture_manager_unittest.cc',
         'command_buffer/service/transfer_buffer_manager_unittest.cc',
+        'command_buffer/service/transform_feedback_manager_unittest.cc',
         'command_buffer/service/vertex_array_manager_unittest.cc',
         'command_buffer/service/vertex_attrib_manager_unittest.cc',
         'config/gpu_blacklist_unittest.cc',
         'config/gpu_control_list_entry_unittest.cc',
         'config/gpu_control_list_number_info_unittest.cc',
         'config/gpu_control_list_os_info_unittest.cc',
         'config/gpu_control_list_unittest.cc',
         'config/gpu_control_list_version_info_unittest.cc',
         'config/gpu_driver_bug_list_unittest.cc',
         'config/gpu_info_collector_unittest.cc',
@@ skipping 877 matching lines @@
             ],
             'sources': [
               'gpu_unittests_apk.isolate',
             ],
           },
         ],
       },
     ],
   ],
 }