Add a command line driven image decoding tool

Source/WebKit/chromium/WebKit.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 502 matching lines @@
             'target_conditions': [
                 ['OS=="android"', {
                     'sources/': [
                         ['include', '^src/linux/WebFontRendering\\.cpp$'],
                         ['include', '^src/linux/WebFontRenderStyle\\.cpp$'],
                     ],
                 }],
             ],
         },
         {
+           'target_name': 'image_decode_bench',
+           'type': 'executable',
+           'dependencies': [
+               '../../wtf/wtf.gyp:wtf',
+               '../../core/core.gyp:webcore',
+               'blink_common',
+               'webkit_test_support',
+               'webkit',
+           ],
+           'defines': [
+               'WEBKIT_IMPLEMENTATION=1',
+           ],
+           'sources': [
+               'src/ImageDecodeBench.cpp',
+           ],
+        },
+        {
             'target_name': 'webkit_test_support',
             'conditions': [
                 ['component=="shared_library"', {
                     'type': 'none',
                 }, {
                     'type': 'static_library',
                     'dependencies': [
                         '../../wtf/wtf.gyp:wtf',
                         '../../core/core.gyp:webcore_test_support',
                     ],
@@ skipping 55 matching lines @@
         ['clang==1', {
             'target_defaults': {
                 'cflags': ['-Wglobal-constructors'],
                 'xcode_settings': {
                     'WARNING_CFLAGS': ['-Wglobal-constructors'],
                 },
             },
         }],
     ], # conditions
 }