Add ShareGroup stub

gpu/gpu_common.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.
 
 {
   'targets': [
     {
       # Library emulates GLES2 using command_buffers.
       'target_name': 'gles2_implementation',
       'type': '<(component)',
@@ skipping 131 matching lines @@
         '<@(gles2_c_lib_source_files)',
         'command_buffer/client/client_test_helper.cc',
         'command_buffer/client/client_test_helper.h',
         'command_buffer/client/cmd_buffer_helper_test.cc',
         'command_buffer/client/fenced_allocator_test.cc',
         '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/share_group_unittest.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/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',
@@ skipping 46 matching lines @@
       ],
       'sources': [
         'command_buffer/common/gl_mock.h',
         'command_buffer/common/gl_mock.cc',
         'command_buffer/service/gles2_cmd_decoder_mock.cc',
         'command_buffer/service/gles2_cmd_decoder_mock.cc',
       ],
     },
   ],
 }