[SystemInfo API] Rewrite storage info provider using storage monitor impl

chrome/chrome_tests_unit.gypi

 # Copyright 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': [
     {
       # This target contains mocks and test utilities that don't belong in
       # production libraries but are used by more than one test executable.
       'target_name': 'test_support_common',
       'type': 'static_library',
@@ skipping 742 matching lines @@
         'browser/extensions/api/socket/udp_socket_unittest.cc',
         'browser/extensions/api/storage/policy_value_store_unittest.cc',
         'browser/extensions/api/storage/settings_frontend_unittest.cc',
         'browser/extensions/api/storage/settings_quota_unittest.cc',
         'browser/extensions/api/storage/settings_sync_unittest.cc',
         'browser/extensions/api/storage/settings_test_util.cc',
         'browser/extensions/api/storage/settings_test_util.h',
         'browser/extensions/api/streams_private/streams_private_manifest_unittest.cc',
         'browser/extensions/api/system_info_cpu/cpu_info_provider_unittest.cc',
         'browser/extensions/api/system_info_memory/memory_info_provider_unittest.cc',
-        'browser/extensions/api/system_info_storage/storage_info_provider_linux_unittest.cc',
         'browser/extensions/api/system_info_storage/storage_info_provider_unittest.cc',
+        'browser/extensions/api/system_info_storage/test_storage_info_provider.cc',

[Lei Zhang, 2013/05/28 08:08:07]

When multiple tests use the same files, put it in the test_support_common
target.

[Hongbo Min, 2013/05/28 14:24:01]

Done.

+        'browser/extensions/api/system_info_storage/test_storage_info_provider.h',
         'browser/extensions/api/web_navigation/frame_navigation_state_unittest.cc',
         'browser/extensions/api/web_request/form_data_parser_unittest.cc',
         'browser/extensions/api/web_request/upload_data_presenter_unittest.cc',
         'browser/extensions/api/web_request/web_request_api_unittest.cc',
         'browser/extensions/api/web_request/web_request_permissions_unittest.cc',
         'browser/extensions/api/web_request/web_request_time_tracker_unittest.cc',
         'browser/extensions/app_sync_data_unittest.cc',
         'browser/extensions/blacklist_unittest.cc',
         'browser/extensions/browser_permissions_policy_delegate_unittest.cc',
         'browser/extensions/component_loader_unittest.cc',
@@ skipping 1757 matching lines @@
               # more details.
               'DebugInformationFormat': '3',
               'ProgramDataBaseFileName': '<(PRODUCT_DIR)/unit_tests.exe.pdb',
             },
           },
         },
       ],
     }],
   ],  # 'conditions'
 }