Change DownloadProcessHandle to be more of an encapsulated class.

chrome/chrome_browser.gypi

 # Copyright (c) 2011 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',
       'msvs_guid': '5BF908A7-68FB-4A4B-99E3-8C749F1FE4EA',
@@ skipping 808 matching lines @@
         'browser/download/download_history.cc',
         'browser/download/download_history.h',
         'browser/download/download_item.cc',
         'browser/download/download_item.h',
         'browser/download/download_item_model.cc',
         'browser/download/download_item_model.h',
         'browser/download/download_manager.cc',
         'browser/download/download_manager.h',
         'browser/download/download_prefs.cc',
         'browser/download/download_prefs.h',
-        'browser/download/download_process_handle.cc',
-        'browser/download/download_process_handle.h',
+        'browser/download/download_request_handle.cc',
+        'browser/download/download_request_handle.h',
         'browser/download/download_request_infobar_delegate.cc',
         'browser/download/download_request_infobar_delegate.h',
         'browser/download/download_request_limiter.cc',
         'browser/download/download_request_limiter.h',
         'browser/download/download_safe_browsing_client.cc',
         'browser/download/download_safe_browsing_client.h',
         'browser/download/download_shelf.h',
         'browser/download/download_shelf_context_menu.cc',
         'browser/download/download_shelf_context_menu.h',
         'browser/download/download_started_animation.h',
@@ skipping 3784 matching lines @@
       'hard_dependency': 1,
     },
   ],
 }
 
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