[KeyEvent Mac] Remove the WebInputEventFactory from blink.

Source/web/web.gyp

 #
 # Copyright (C) 2011 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #         * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #         * Redistributions in binary form must reproduce the above
@@ skipping 174 matching lines @@
                 }],
                 ['OS=="mac"', {
                     'link_settings': {
                         'libraries': [
                             '$(SDKROOT)/System/Library/Frameworks/Accelerate.framework',
                             '$(SDKROOT)/System/Library/Frameworks/OpenGL.framework',
                         ],
                     },
                 }, { # else: OS!="mac"
                     'sources/': [
-                        ['exclude', 'WebInputEventFactoryMac.mm$'],
                         ['exclude', 'mac/WebScrollbarTheme.cpp$'],
                     ],
                 }],
                 ['use_default_render_theme==0', {
                     'sources/': [
                         ['exclude', 'default/WebRenderTheme.cpp'],
                     ],
                 }],
             ],
             'direct_dependent_settings': {
@@ skipping 71 matching lines @@
                     'dependencies': ['<(DEPTH)/third_party/mesa/mesa.gyp:osmesa'],
                     'copies': [{
                         'destination': '<(PRODUCT_DIR)/DumpRenderTree.app/Contents/MacOS/',
                         'files': ['<(PRODUCT_DIR)/osmesa.so'],
                     }],
                 },
             ],
         }],
     ], # conditions
 }