Fixed not-unique event 'id' in TRACE_EVENT from GLARBTimerTrace

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,
   },
   'includes': [
     'gpu_common.gypi',
@@ skipping 227 matching lines @@
         'command_buffer/service/stream_texture_mock.cc',
         'command_buffer/service/stream_texture_mock.h',
         'command_buffer/service/stream_texture_manager_mock.cc',
         'command_buffer/service/stream_texture_manager_mock.h',
         '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/vertex_attrib_manager_unittest.cc',
         'command_buffer/service/vertex_array_manager_unittest.cc',
+        'command_buffer/service/gpu_tracer.cc',
+        'command_buffer/service/gpu_tracer_unittest.cc',
         'config/gpu_blacklist_unittest.cc',
         'config/gpu_control_list_entry_unittest.cc',
         'config/gpu_control_list_machine_model_info_unittest.cc',
         'config/gpu_control_list_number_info_unittest.cc',
         'config/gpu_control_list_os_info_unittest.cc',
         'config/gpu_control_list_string_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 319 matching lines @@
             'input_shlib_path': '<(SHARED_LIB_DIR)/<(SHARED_LIB_PREFIX)gl_tests<(SHARED_LIB_SUFFIX)',
           },
           'includes': [
             '../build/apk_test.gypi',
           ],
         },
       ],
     }],
   ],
 }