Add "dangerous download" view on OS X, for now for dmg files. Also fix download item layout.

chrome/chrome.gyp

 # Copyright (c) 2009 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': {
     'chromium_code': 1,
     # Define the common dependencies that contain all the actual
     # Chromium functionality.  This list gets pulled in below by
     # the link of the actual chrome (or chromium) executable on
@@ skipping 2040 matching lines @@
             'browser/views/autocomplete/autocomplete_popup_gtk.cc',
             'browser/views/autocomplete/autocomplete_popup_gtk.h'
           ],
         }],
         ['OS=="mac"', {
           'sources!': [
             'browser/automation/automation_provider_list_generic.cc',
             'browser/bookmarks/bookmark_context_menu.cc',
             'browser/bookmarks/bookmark_drop_info.cc',
             'browser/dock_info.cc',
-            'browser/download/download_exe.cc',
             'browser/download/download_request_dialog_delegate_win.cc',
             'browser/jankometer.cc',
             'browser/login_prompt.cc',
             'browser/password_manager/password_store_gnome.h',
             'browser/password_manager/password_store_gnome.cc',
             'browser/password_manager/password_store_kwallet.h',
             'browser/password_manager/password_store_kwallet.cc',
             'browser/password_manager/password_store_win.cc',
             'browser/password_manager/password_store_win.h',
             'browser/views/extensions/extension_shelf.cc',
@@ skipping 767 matching lines @@
         'app/nibs/InfoBar.xib',
         'app/nibs/InfoBarContainer.xib',
         'app/nibs/ImportProgressDialog.xib',
         'app/nibs/MainMenu.xib',
         'app/nibs/PageInfo.xib',
         'app/nibs/Preferences.xib',
         'app/nibs/SaveAccessoryView.xib',
         'app/nibs/TabContents.xib',
         'app/nibs/TabView.xib',
         'app/nibs/Toolbar.xib',
+        'app/theme/alert_small.png',
         'app/theme/back_Template.pdf',
         'app/theme/bookmark_bar_folder.png',
         'app/theme/chevron.png', # TODO(jrg): get (and use) a pdf version
         'app/theme/close_bar.pdf',
         'app/theme/close_bar_h.pdf',
         'app/theme/close_bar_p.pdf',
         'app/theme/downloads_favicon.png',
         'app/theme/forward_Template.pdf',
         'app/theme/frozen_tab.png',
         'app/theme/go_Template.pdf',
@@ skipping 2601 matching lines @@
               # Use outputs of this action as inputs for the main target build.
               # Seems as a misnomer but makes this happy on Linux (scons).
               'process_outputs_as_sources': 1,
             },
           ],  # 'actions'
         },
       ]
     }],
   ],  # 'conditions'
 }