Change PluginWindowHandle to AcceleratedWidget in ui/gfx/gl

ui/gfx/compositor/compositor.cc

Index: ui/gfx/compositor/compositor.cc
diff --git a/ui/gfx/compositor/compositor.cc b/ui/gfx/compositor/compositor.cc
index 6dd9fc3e576d8538b40903321c2f4a54bae10b5b..54d5b80c09c1b9f9da541665fe45b45e47ce9e71 100644
--- a/ui/gfx/compositor/compositor.cc
+++ b/ui/gfx/compositor/compositor.cc
@@ -254,19 +254,10 @@ WebKit::WebGraphicsContext3D* Compositor::createContext3D() {
     // Use context that results in no rendering to the screen.
     context = new TestWebGraphicsContext3D();
   } else {
-#if defined(OS_MACOSX) && !defined(USE_AURA)
-    // Non-Aura builds compile this code but doesn't call it. Unfortunately
-    // this is where we translate gfx::AcceleratedWidget to
-    // gfx::PluginWindowHandle, and they are different on non-Aura Mac.
-    // TODO(piman): remove ifdefs when AcceleratedWidget is rationalized on Mac.
-    NOTIMPLEMENTED();
-    return NULL;
-#else
     gfx::GLShareGroup* share_group =
         SharedResources::GetInstance()->GetShareGroup();
     context = new webkit::gpu::WebGraphicsContext3DInProcessImpl(
         widget_, share_group);
-#endif
   }
   WebKit::WebGraphicsContext3D::Attributes attrs;
   context->initialize(attrs, 0, true);