introduce chrome/browser/common directory and move url_database(and its dependencies)

chrome/chrome_browser.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': [
     {
       'target_name': 'browser',
       'type': 'static_library',
@@ skipping 463 matching lines @@
         'browser/chrome_plugin_service_filter.h',
         'browser/chrome_quota_permission_context.cc',
         'browser/chrome_quota_permission_context.h',
         'browser/chrome_to_mobile_service.cc',
         'browser/chrome_to_mobile_service.h',
         'browser/chrome_to_mobile_service_factory.cc',
         'browser/chrome_to_mobile_service_factory.h',
         'browser/command_observer.h',
         'browser/command_updater.cc',
         'browser/command_updater.h',
+        'browser/common/url_database/template_url_id.h',
+        'browser/common/url_database/url_database.cc',
+        'browser/common/url_database/url_database.h',
+        'browser/common/url_database/url_database_types.cc',
+        'browser/common/url_database/url_database_types.h',
         'browser/component_updater/component_updater_configurator.cc',
         'browser/component_updater/component_updater_configurator.h',
         'browser/component_updater/component_unpacker.cc',
         'browser/component_updater/component_unpacker.h',
         'browser/component_updater/component_updater_service.cc',
         'browser/component_updater/component_updater_service.h',
         'browser/component_updater/flash_component_installer.h',
         'browser/component_updater/npapi_flash_component_installer.cc',
         'browser/component_updater/pepper_flash_component_installer.cc',
         'browser/component_updater/pnacl/pnacl_component_installer.cc',
@@ skipping 299 matching lines @@
         'browser/history/thumbnail_database.cc',
         'browser/history/thumbnail_database.h',
         'browser/history/top_sites.cc',
         'browser/history/top_sites.h',
         'browser/history/top_sites_backend.cc',
         'browser/history/top_sites_backend.h',
         'browser/history/top_sites_cache.cc',
         'browser/history/top_sites_cache.h',
         'browser/history/top_sites_database.cc',
         'browser/history/top_sites_database.h',
-        'browser/history/url_database.cc',
-        'browser/history/url_database.h',
         'browser/history/url_index_private_data.cc',
         'browser/history/url_index_private_data.h',
         'browser/history/visit_database.cc',
         'browser/history/visit_database.h',
         'browser/history/visit_filter.cc',
         'browser/history/visit_filter.h',
         'browser/history/visit_tracker.cc',
         'browser/history/visit_tracker.h',
         'browser/history/visitsegment_database.cc',
         'browser/history/visitsegment_database.h',
@@ skipping 850 matching lines @@
         'browser/search_engines/search_provider_install_state_message_filter.h',
         'browser/search_engines/search_terms_data.cc',
         'browser/search_engines/search_terms_data.h',
         'browser/search_engines/template_url.cc',
         'browser/search_engines/template_url.h',
         'browser/search_engines/template_url_fetcher.cc',
         'browser/search_engines/template_url_fetcher.h',
         'browser/search_engines/template_url_fetcher_callbacks.h',
         'browser/search_engines/template_url_fetcher_factory.cc',
         'browser/search_engines/template_url_fetcher_factory.h',
-        'browser/search_engines/template_url_id.h',
         'browser/search_engines/template_url_parser.cc',
         'browser/search_engines/template_url_parser.h',
         'browser/search_engines/template_url_prepopulate_data.cc',
         'browser/search_engines/template_url_prepopulate_data.h',
         'browser/search_engines/template_url_service.cc',
         'browser/search_engines/template_url_service.h',
         'browser/search_engines/template_url_service_factory.cc',
         'browser/search_engines/template_url_service_factory.h',
         'browser/search_engines/template_url_service_observer.h',
         'browser/search_engines/util.cc',
@@ skipping 1149 matching lines @@
           'includes': [ '../build/jni_generator.gypi' ],
           'dependencies': [
             'android_jar_jni_headers',
           ],
         },
       ],
      },
     ],
   ],
 }