Implement GL_EXT_debug_marker

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.
 
 {
   'includes': [
     'gpu_common.gypi',
   ],
   'targets': [
     {
@@ skipping 138 matching lines @@
         'command_buffer/client/gles2_implementation_unittest.cc',
         'command_buffer/client/mapped_memory_unittest.cc',
         'command_buffer/client/query_tracker_unittest.cc',
         'command_buffer/client/program_info_manager_unittest.cc',
         'command_buffer/client/ring_buffer_test.cc',
         'command_buffer/client/transfer_buffer_unittest.cc',
         'command_buffer/common/bitfield_helpers_test.cc',
         'command_buffer/common/command_buffer_mock.cc',
         'command_buffer/common/command_buffer_mock.h',
         'command_buffer/common/command_buffer_shared_test.cc',
+        'command_buffer/common/debug_marker_manager_unittest.cc',
         'command_buffer/common/gles2_cmd_format_test.cc',
         'command_buffer/common/gles2_cmd_format_test_autogen.h',
         'command_buffer/common/gles2_cmd_utils_unittest.cc',
         'command_buffer/common/id_allocator_test.cc',
         'command_buffer/common/trace_event.h',
         'command_buffer/common/unittest_main.cc',
         'command_buffer/service/buffer_manager_unittest.cc',
         'command_buffer/service/cmd_parser_test.cc',
         'command_buffer/service/command_buffer_service_unittest.cc',
         'command_buffer/service/common_decoder_unittest.cc',
@@ skipping 232 matching lines @@
           'target_name': 'gpu_ipc',
           'type': 'none',
           'dependencies': [
             'gpu',
           ],
         },
       ],
     }],
   ],
 }