[Mac] Respect natural/inverted scroll direction on Lion when gesturing.

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 2428 matching lines @@
         'browser/ui/cocoa/floating_bar_backing_view.h',
         'browser/ui/cocoa/floating_bar_backing_view.mm',
         'browser/ui/cocoa/focus_tracker.h',
         'browser/ui/cocoa/focus_tracker.mm',
         'browser/ui/cocoa/framed_browser_window.h',
         'browser/ui/cocoa/framed_browser_window.mm',
         'browser/ui/cocoa/fullscreen_controller.h',
         'browser/ui/cocoa/fullscreen_controller.mm',
         'browser/ui/cocoa/fullscreen_window.h',
         'browser/ui/cocoa/fullscreen_window.mm',
+        'browser/ui/cocoa/gesture_utils.h',
+        'browser/ui/cocoa/gesture_utils.mm',
         'browser/ui/cocoa/gradient_button_cell.h',
         'browser/ui/cocoa/gradient_button_cell.mm',
         'browser/ui/cocoa/history_menu_bridge.h',
         'browser/ui/cocoa/history_menu_bridge.mm',
         'browser/ui/cocoa/history_menu_cocoa_controller.h',
         'browser/ui/cocoa/history_menu_cocoa_controller.mm',
         'browser/ui/cocoa/hover_button.h',
         'browser/ui/cocoa/hover_button.mm',
         'browser/ui/cocoa/hover_close_button.h',
         'browser/ui/cocoa/hover_close_button.mm',
@@ skipping 2400 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,
     },
   ],
 }