Make DownloadHistory observe manager, items

content/content_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.
 
 {
   'dependencies': [
     'browser/speech/proto/speech_proto.gyp:speech_proto',
     '../base/base.gyp:base_static',
     '../crypto/crypto.gyp:crypto',
     '../google_apis/google_apis.gyp:google_apis',
@@ skipping 50 matching lines @@
     'public/browser/devtools_http_handler_delegate.h',
     'public/browser/devtools_manager.h',
     'public/browser/dom_operation_notification_details.h',
     'public/browser/dom_storage_context.h',
     'public/browser/download_interrupt_reason_values.h',
     'public/browser/download_interrupt_reasons.h',
     'public/browser/download_item.h',
     'public/browser/download_manager.h',
     'public/browser/download_manager_delegate.cc',
     'public/browser/download_manager_delegate.h',
-    'public/browser/download_persistent_store_info.cc',
-    'public/browser/download_persistent_store_info.h',
     'public/browser/download_save_info.cc',
     'public/browser/download_save_info.h',
     'public/browser/download_url_parameters.cc',
     'public/browser/download_url_parameters.h',
     'public/browser/favicon_status.cc',
     'public/browser/favicon_status.h',
     'public/browser/file_descriptor_info.h',
     'public/browser/font_list_async.h',
     'public/browser/geolocation.h',
     'public/browser/geolocation_permission_context.h',
@@ skipping 986 matching lines @@
         ['exclude', '^browser/renderer_host/java/'],
       ],
     }],
     ['input_speech==0', {
       'sources/': [
         ['exclude', '^browser/speech/'],
       ],
     }],
   ],
 }