Enable Skia's edge-antialiasing tessellating path renderer.

skia/config/SkUserConfig.h

 /*
  * Copyright (C) 2006 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
@@ skipping 240 matching lines @@
 #define GR_GL_CUSTOM_SETUP_HEADER   "GrGLConfig_chrome.h"
 
 // mtklein's fiddling with Src / SrcOver.  Will rebaseline these only once when done.
 #define SK_SUPPORT_LEGACY_X86_BLITS
 
 #define SK_DISABLE_TILE_IMAGE_FILTER_OPTIMIZATION
 
 // Updating to a correct SkPMColor lerp will require layout test rebaselines.
 #define SK_SUPPORT_LEGACY_BROKEN_LERP
 
-// Enabling the screenspace AA tessellating path renderer needs rebaselines.
-#define SK_DISABLE_SCREENSPACE_TESS_AA_PATH_RENDERER
-
 #ifndef    SK_SUPPORT_LEGACY_AAA
 #   define SK_SUPPORT_LEGACY_AAA
 #endif
 
 // ===== End Chrome-specific definitions =====
 
 #endif