Add operator= to InputMethodProperty.

chrome/chrome_tests.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.
 {
   'variables' : {
     'pyautolib_sources': [
       'app/chrome_command_ids.h',
       'app/chrome_dll_resource.h',
       'common/automation_constants.h',
       'common/pref_names.cc',
@@ skipping 1281 matching lines @@
         'browser/chromeos/gdata/mock_gdata_documents_service.cc',
         'browser/chromeos/gdata/mock_gdata_documents_service.h',
         'browser/chromeos/gdata/mock_gdata_file_system.cc',
         'browser/chromeos/gdata/mock_gdata_file_system.h',
         'browser/chromeos/gdata/mock_gdata_sync_client.cc',
         'browser/chromeos/gdata/mock_gdata_sync_client.h',
         'browser/chromeos/gview_request_interceptor_unittest.cc',
         'browser/chromeos/imageburner/burn_manager_unittest.cc',
         'browser/chromeos/input_method/candidate_window_view_unittest.cc',
         'browser/chromeos/input_method/input_method_descriptor_unittest.cc',
+        'browser/chromeos/input_method/input_method_property_unittest.cc',
         'browser/chromeos/input_method/input_method_util_unittest.cc',
         'browser/chromeos/input_method/input_method_whitelist_unittest.cc',
         'browser/chromeos/input_method/virtual_keyboard_selector_unittest.cc',
         'browser/chromeos/input_method/xkeyboard_unittest.cc',
         'browser/chromeos/kiosk_mode/kiosk_mode_idle_logout_unittest.cc',
         'browser/chromeos/kiosk_mode/kiosk_mode_screensaver_unittest.cc',
         'browser/chromeos/kiosk_mode/kiosk_mode_settings_unittest.cc',
         'browser/chromeos/language_preferences_unittest.cc',
         'browser/chromeos/login/authenticator_unittest.cc',
         'browser/chromeos/login/mock_auth_attempt_state_resolver.cc',
@@ skipping 3338 matching lines @@
               # Use outputs of this action as inputs for the main target build.
               # Seems as a misnomer but makes this happy on Linux (scons).
               'process_outputs_as_sources': 1,
             },
           ],  # 'actions'
         },
       ]
     }],  # 'coverage!=0'
   ],  # 'conditions'
 }