This change adds the apple software renderer as an option on Chrome/Mac. It's enabled by passing...

ui/gfx/gl/gl_bindings_skia_in_process.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 
 #include "ui/gfx/gl/gl_bindings_skia_in_process.h"
 
 #include "base/logging.h"
 #include "third_party/skia/include/gpu/GrGLInterface.h"
 #include "ui/gfx/gl/gl_bindings.h"
@@ skipping 510 matching lines @@
 
 namespace gfx {
 
 GrGLInterface* CreateInProcessSkiaGLBinding() {
   GrGLBinding binding;
   switch (gfx::GetGLImplementation()) {
     case gfx::kGLImplementationNone:
       NOTREACHED();
       return NULL;
     case gfx::kGLImplementationDesktopGL:
+    case gfx::kGLImplementationAppleGL:
       binding = kDesktop_GrGLBinding;
       break;
     case gfx::kGLImplementationOSMesaGL:
       binding = kDesktop_GrGLBinding;
       break;
     case gfx::kGLImplementationEGLGLES2:
       binding = kES2_GrGLBinding;
       break;
     case gfx::kGLImplementationMockGL:
       NOTREACHED();
@@ skipping 119 matching lines @@
     StubGLRenderbufferStorageMultisample;
   interface->fBlitFramebuffer = StubGLBlitFramebuffer;
   interface->fMapBuffer = StubGLMapBuffer;
   interface->fUnmapBuffer = StubGLUnmapBuffer;
   interface->fBindFragDataLocationIndexed =
     StubGLBindFragDataLocationIndexed;
   return interface;
 }
 
 }  // namespace gfx