Revert of move remaining virtual draw methods to onDraw

gyp/skia_for_android_framework_defines.gypi

 # Copyright 2014 Google Inc.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # This file is included by chrome's skia/skia_common.gypi, and is intended to
 # augment the skia flags that are set there.
 
 {
   'variables': {
 
     # These flags will be defined in the android framework.
     #
     # If these become 'permanent', they should be moved into common_variables.gypi
     #
     'skia_for_android_framework_defines': [
       'SK_SUPPORT_LEGACY_GRADIENT_FACTORIES',
       'SK_SUPPORT_LEGACY_PUBLIC_IMAGEINFO_FIELDS',
       'SK_SUPPORT_LEGACY_GETDEVICE',
       # Needed until we fix skbug.com/2440.
       'SK_SUPPORT_LEGACY_CLIPTOLAYERFLAG',
       # TODO(tfarina): Remove this when Android is fixed. skbug.com/3178
       'SK_SUPPORT_LEGACY_PORTER_DUFF',
       'SK_SUPPORT_LEGACY_DRAWDATA',
-      'SK_SUPPORT_LEGACY_CANVAS_VIRTUAL',
     ],
   },
 }