mac: Only let two-finger-scrolling trigger history if web doesn't swallow gesture

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 2493 matching lines @@
         'browser/ui/cocoa/first_run_dialog.h',
         'browser/ui/cocoa/first_run_dialog.mm',
         '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_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 1596 matching lines @@
               '$(SDKROOT)/System/Library/Frameworks/DiskArbitration.framework',
               '$(SDKROOT)/System/Library/Frameworks/IOKit.framework',
               '$(SDKROOT)/System/Library/Frameworks/OpenGL.framework',
               '$(SDKROOT)/System/Library/Frameworks/QuartzCore.framework',
               '$(SDKROOT)/System/Library/Frameworks/SecurityInterface.framework',
             ],
             'mac_bundle_resources': [
               'browser/nacl_loader.sb',
             ],
           },
+          'dependencies': [
+            'closure_blocks_leopard_compat',
+          ],
           'actions': [
             {
               # This action is used to extract the localization data from xib
               # files and generate table for the ui localizer from it.
               'variables': {
                 'xib_localizer_tool_path':
                     'tools/build/mac/generate_localizer',
                 'xib_files_to_scan': [
                   # The xibs that need localization
                   'app/nibs/About.xib',
@@ skipping 884 matching lines @@
               # weak imports in dependents, who still must #include
               # closure_blocks_leopard_compat.h to get weak imports.
               'type': 'none',
             }],
           ],
         },
       ],
     }],
   ],
 }