Reapply webkitRequestAimationFrame->requestAnimationFrame with fix for dartium

tests/html/html.status

 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 window_open_test: Fail, Pass # http://dartbug.com/5151
 
 event_test: Skip  # Issue 1996
 webgl_1_test: Skip  # Issue 1495
 xmldocument_test: Skip  # XML in dart:html is incomplete
 xmlelement_test: Skip  # XML in dart:html is incomplete
@@ skipping 57 matching lines @@
 node_test: Fail
 svgelement_test: Fail
 svgelement2_test: Fail
 websql_test: Fail # IE does not support web SQL
 #
 # Investigate and triage the following into bug reports.
 #
 audiocontext_test: Fail
 blob_constructor_test: Fail
 cache_test: Fail
-callbacks_test: Fail
 canvas_test: Fail
 canvas_using_html_test: Fail
 css_test: Fail
 datalistelement_test: Fail    # ie9 does not have HTMLDataListElement
 dom_constructors_test: Fail
 exceptions_test: Fail
 fileapi_test: Fail          # IE does not support filesystem APIs.
 history_test: Fail
 indexeddb_1_test: Fail
 indexeddb_2_test: Fail
@@ skipping 19 matching lines @@
 
 [ $runtime == safari ]
 canvas_pixel_array_type_alias_test: Fail # Caught TypeError: 'undefined' is not a function
 node_test: Fail
 svgelement_test: Fail
 svgelement2_test: Fail
 
 [ $runtime == ff ]
 audiocontext_test: Fail      # FF only has Audio element
 css_test: Fail               # No analog to WebKitCSSMatrix
-callbacks_test: Fail         # (webkit|moz|ms)RequestAnimationFrame
 canvas_test: Fail            # No setFillColor() method.  Use fillstyle attribute instead.
 canvas_using_html_test: Fail # No setFillColor() method.  Use fillstyle attribute instead.
 dart_object_local_storage_test: Skip  # sessionStorage NS_ERROR_DOM_NOT_SUPPORTED_ERR
 documentfragment_test: Fail
 element_test: Fail
 exceptions_test: Fail      # Uses webkitotifications, no analogue in moz
 fileapi_test: Fail         # FF does not support filesystem APIs.
 indexeddb_1_test: Fail     # Need window.mozIndexedDB instead of window.webkitIndexedDB
 indexeddb_2_test: Fail     # Need window.mozIndexedDB instead of window.webkitIndexedDB
 indexeddb_3_test: Fail     # Need window.mozIndexedDB instead of window.webkitIndexedDB
@@ skipping 66 matching lines @@
 [ $compiler == dart2js && $runtime == chrome && $system == windows]
 css_test: Pass, Fail # Issue #2823
 
 [ $compiler == dart2js && $runtime == ff && $system == windows]
 js_interop_2_test: Fail # Issue 4658.
 
 [ $compiler == dart2js && $checked && $browser]
 fileapi_test: Fail # TypeError: Object #<DirectoryEntry> has no method 'get$name'
 cross_frame_test: Fail # Caught NoSuchMethodError : method not found: 'is$_WindowImpl'
 window_open_test: Fail # Caught NoSuchMethodError : method not found: 'is$_WindowImpl'