Move JavascriptTestObserver from chrome to content.

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 215 matching lines @@
         'test/base/chrome_test_suite.cc',
         'test/base/chrome_test_suite.h',
         'test/base/chrome_unit_test_suite.cc',
         'test/base/chrome_unit_test_suite.h',
         'test/base/find_in_page_observer.cc',
         'test/base/find_in_page_observer.h',
         'test/base/history_index_restore_observer.cc',
         'test/base/history_index_restore_observer.h',
         'test/base/in_process_browser_test.cc',
         'test/base/in_process_browser_test.h',
-        'test/base/javascript_test_observer.cc',
-        'test/base/javascript_test_observer.h',
         'test/base/module_system_test.cc',
         'test/base/module_system_test.h',
         'test/base/profile_mock.cc',
         'test/base/profile_mock.h',
         'test/base/scoped_browser_locale.cc',
         'test/base/scoped_browser_locale.h',
         'test/base/scoped_testing_local_state.cc',
         'test/base/scoped_testing_local_state.h',
         'test/base/test_browser_window.cc',
         'test/base/test_browser_window.h',
@@ skipping 2598 matching lines @@
               # more details.
               'DebugInformationFormat': '3',
               'ProgramDataBaseFileName': '<(PRODUCT_DIR)/unit_tests.exe.pdb',
             },
           },
         },
       ],
     }],
   ],  # 'conditions'
 }