Split infobar_delegate.[cc,h] into separate pieces for the different classes defined within, so that

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': '<(library)',
       'msvs_guid': '5BF908A7-68FB-4A4B-99E3-8C749F1FE4EA',
@@ skipping 1943 matching lines @@
         'browser/sync/sync_ui_util.cc',
         'browser/sync/sync_ui_util.h',
         'browser/sync/sync_ui_util_mac.h',
         'browser/sync/sync_ui_util_mac.mm',
         'browser/sync/token_migrator.cc',
         'browser/sync/token_migrator.h',
         'browser/tab_closeable_state_watcher.cc',
         'browser/tab_closeable_state_watcher.h',
         'browser/tab_contents/background_contents.cc',
         'browser/tab_contents/background_contents.h',
-        'browser/tab_contents/infobar_delegate.cc',
-        'browser/tab_contents/infobar_delegate.h',
+        'browser/tab_contents/confirm_infobar_delegate.cc',
+        'browser/tab_contents/confirm_infobar_delegate.h',
+        'browser/tab_contents/link_infobar_delegate.cc',
+        'browser/tab_contents/link_infobar_delegate.h',
+        'browser/tab_contents/simple_alert_infobar_delegate.cc',
+        'browser/tab_contents/simple_alert_infobar_delegate.h',
         'browser/tab_contents/popup_menu_helper_mac.h',
         'browser/tab_contents/popup_menu_helper_mac.mm',
         'browser/tab_contents/render_view_context_menu.cc',
         'browser/tab_contents/render_view_context_menu.h',
         'browser/tab_contents/render_view_context_menu_gtk.cc',
         'browser/tab_contents/render_view_context_menu_gtk.h',
         'browser/tab_contents/render_view_context_menu_mac.h',
         'browser/tab_contents/render_view_context_menu_mac.mm',
         'browser/tab_contents/render_view_host_delegate_helper.cc',
         'browser/tab_contents/render_view_host_delegate_helper.h',
@@ skipping 2447 matching lines @@
       ],
     },
   ],
 }
 
 # Local Variables:
 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: