Moves HistoryIndexRestoreObserver to components/omnibox/browser.

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.
 {
   'variables': {
     'chrome_unit_tests_sources': [
       # histograms.xml is analyzed by AboutFlagsHistogramTest, so this
       # dependency is needed to make commit bots run unit_tests on
       # histograms.xml changes.
       '../tools/metrics/histograms/histograms.xml',
@@ skipping 1810 matching lines @@
         'test/base/chrome_test_launcher.cc',
         'test/base/chrome_test_launcher.h',
         '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/dialog_test_browser_window.cc',
         'test/base/dialog_test_browser_window.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/scoped_browser_locale.cc',
         'test/base/scoped_browser_locale.h',
         'test/base/scoped_bundle_swizzler_mac.h',
         'test/base/scoped_bundle_swizzler_mac.mm',
         'test/base/scoped_testing_local_state.cc',
         'test/base/scoped_testing_local_state.h',
         'test/base/search_test_utils.cc',
         'test/base/search_test_utils.h',
         'test/base/test_browser_window.cc',
         'test/base/test_browser_window.h',
@@ skipping 1213 matching lines @@
               'dependencies': [
                 '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
               ],
             }],
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }