Move download stuff from download helper back to TabContents. This is basically a revert of r8576...

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',
       'dependencies': [
@@ skipping 2657 matching lines @@
         'browser/ui/content_settings/content_setting_bubble_model.h',
         'browser/ui/content_settings/content_setting_combo_model.cc',
         'browser/ui/content_settings/content_setting_combo_model.h',
         'browser/ui/content_settings/content_setting_image_model.cc',
         'browser/ui/content_settings/content_setting_image_model.h',
         'browser/ui/crypto_module_password_dialog.h',
         'browser/ui/crypto_module_password_dialog_nss.cc',
         'browser/ui/crypto_module_password_dialog_openssl.cc',
         'browser/ui/download/download_tab_helper.cc',
         'browser/ui/download/download_tab_helper.h',
-        'browser/ui/download/download_tab_helper_delegate.cc',
-        'browser/ui/download/download_tab_helper_delegate.h',
         'browser/ui/find_bar/find_bar.h',
         'browser/ui/find_bar/find_bar_controller.cc',
         'browser/ui/find_bar/find_bar_controller.h',
         'browser/ui/find_bar/find_bar_state.cc',
         'browser/ui/find_bar/find_bar_state.h',
         'browser/ui/find_bar/find_notification_details.h',
         'browser/ui/find_bar/find_tab_helper.h',
         'browser/ui/find_bar/find_tab_helper.cc',
         'browser/ui/gtk/about_chrome_dialog.cc',
         'browser/ui/gtk/about_chrome_dialog.h',
@@ skipping 2141 matching lines @@
       ],
       'export_dependent_settings': [
         'in_memory_url_index_cache_proto',
       ],
       # This target exports a hard dependency because it includes generated
       # header files.
       'hard_dependency': 1,
     },
   ],
 }