Revert of Make GrDrawState and GrPaint take GrEffect* instead of GrEffectRef*.

src/effects/gradients/SkTwoPointConicalGradient_gpu.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkTwoPointConicalGradient_gpu_DEFINED
 #define SkTwoPointConicalGradient_gpu_DEFINED
 
 #include "SkGradientShaderPriv.h"
 
-class GrEffect;
+class GrEffectRef;
 class SkTwoPointConicalGradient;
 
 namespace Gr2PtConicalGradientEffect {
     /**
      * Creates an effect that produces a two point conical gradient based on the
      * shader passed in.
      */
-    GrEffect* Create(GrContext* ctx, const SkTwoPointConicalGradient& shader,
-                     SkShader::TileMode tm, const SkMatrix* localMatrix);
+    GrEffectRef* Create(GrContext* ctx, const SkTwoPointConicalGradient& shader,
+                        SkShader::TileMode tm, const SkMatrix* localMatrix);
 };
 
 #endif