Remove dependency on //content from history DownloadDatabase

chrome/chrome_browser.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': {
     # All .cc, .h, .m, and .mm files under browser except for:
     # * tests and mocks.
     # * code below browser/chromeos
     # * code below browser/extensions
@@ skipping 1488 matching lines @@
       'browser/history/android/urls_sql_handler.cc',
       'browser/history/android/urls_sql_handler.h',
       'browser/history/android/visit_sql_handler.cc',
       'browser/history/android/visit_sql_handler.h',
       'browser/history/chrome_history_client.cc',
       'browser/history/chrome_history_client.h',
       'browser/history/chrome_history_client_factory.cc',
       'browser/history/chrome_history_client_factory.h',
       'browser/history/delete_directive_handler.cc',
       'browser/history/delete_directive_handler.h',
-      'browser/history/download_database.cc',
-      'browser/history/download_database.h',
-      'browser/history/download_row.cc',
-      'browser/history/download_row.h',
       'browser/history/expire_history_backend.cc',
       'browser/history/expire_history_backend.h',
       'browser/history/history_backend.cc',
       'browser/history/history_backend.h',
       'browser/history/history_backend_android.cc',
       'browser/history/history_database.cc',
       'browser/history/history_database.h',
       'browser/history/history_details.h',
       'browser/history/history_notifications.cc',
       'browser/history/history_notifications.h',
@@ skipping 1368 matching lines @@
         '../components/components.gyp:crx_file',
         '../components/components.gyp:data_reduction_proxy_core_browser',
         '../components/components.gyp:domain_reliability',
         '../components/components.gyp:enhanced_bookmarks',
         '../components/components.gyp:favicon_base',
         '../components/components.gyp:favicon_core',
         '../components/components.gyp:feedback_component',
         '../components/components.gyp:gcm_driver',
         '../components/components.gyp:google_core_browser',
         '../components/components.gyp:handoff',
+        '../components/components.gyp:history_content_browser',
         '../components/components.gyp:history_core_browser',
         '../components/components.gyp:history_core_common',
         '../components/components.gyp:infobars_core',
         '../components/components.gyp:invalidation',
         '../components/components.gyp:metrics',
         '../components/components.gyp:metrics_gpu',
         '../components/components.gyp:metrics_net',
         '../components/components.gyp:metrics_profiler',
         '../components/components.gyp:navigation_metrics',
         '../components/components.gyp:network_time',
@@ skipping 814 matching lines @@
           'variables': {
             'proto_in_dir': 'browser/sync_file_system/drive_backend',
             'proto_out_dir': 'chrome/browser/sync_file_system/drive_backend',
           },
           'includes': [ '../build/protoc.gypi' ]
         },
       ],
     },],
   ],
 }