Move core/scripts to build/scripts so that platform can use them.

Source/core/core.gyp

 #
 # Copyright (C) 2009 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 479 matching lines @@
                 # This step ensures that any Objective-C names that aren't
                 # redefined to be "safe" above will cause a build failure.
                 'postbuild_name': 'Check Objective-C Rename',
                 'variables': {
                   'class_whitelist_regex':
                       'ChromiumWebCoreObjC|TCMVisibleView|RTCMFlippedView',
                   'category_whitelist_regex':
                       'TCMInterposing|ScrollAnimatorChromiumMacExt|WebCoreTheme',
                 },
                 'action': [
-                  'scripts/check_objc_rename.sh',
+                  '../build/scripts/check_objc_rename.sh',
                   '<(class_whitelist_regex)',
                   '<(category_whitelist_regex)',
                 ],
               },
             ],
           },
         }],
         ['OS=="win"', {
           'direct_dependent_settings': {
             'defines': [
@@ skipping 580 matching lines @@
         '<(SHARED_INTERMEDIATE_DIR)/blink/bindings/V8LayerRect.h',
         '<(SHARED_INTERMEDIATE_DIR)/blink/bindings/V8LayerRectList.cpp',
         '<(SHARED_INTERMEDIATE_DIR)/blink/bindings/V8LayerRectList.h',
       ],
       'sources/': [
         ['exclude', 'testing/js'],
       ],
     },
   ],  # targets
 }