Fix param name in GrEffect::CastEffect

include/gpu/GrEffect.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrEffect_DEFINED
 #define GrEffect_DEFINED
 
@@ skipping 151 matching lines @@
      * called from the constructor because GrEffects are immutable.
      */
     void addTextureAccess(const GrTextureAccess* textureAccess);
 
     GrEffect()
         : fWillReadDstColor(false)
         , fWillReadFragmentPosition(false)
         , fWillUseInputColor(true)
         , fHasVertexCode(false) {}
 
-    /** Helper for down-casting to a GrEffect subclass
+    /**
+      * Helper for down-casting to a GrEffect subclass
       */
-    template <typename T>
-    static const T& CastEffect(const GrEffect& effectRef) {
-        return *static_cast<const T*>(&effectRef);
+    template <typename T> static const T& CastEffect(const GrEffect& effect) {
+        return *static_cast<const T*>(&effect);
     }
 
     /**
      * If the effect subclass will read the destination pixel value then it must call this function
      * from its constructor. Otherwise, when its generated backend-specific effect class attempts
      * to generate code that reads the destination pixel it will fail.
      */
     void setWillReadDstColor() { fWillReadDstColor = true; }
 
     /**
@@ skipping 35 matching lines @@
  * This creates an effect outside of the effect memory pool. The effect's destructor will be called
  * at global destruction time. NAME will be the name of the created GrEffect.
  */
 #define GR_CREATE_STATIC_EFFECT(NAME, EFFECT_CLASS, ARGS)                                         \
 static SkAlignedSStorage<sizeof(EFFECT_CLASS)> g_##NAME##_Storage;                                \
 static GrEffect* NAME SkNEW_PLACEMENT_ARGS(g_##NAME##_Storage.get(), EFFECT_CLASS, ARGS);         \
 static SkAutoTDestroy<GrEffect> NAME##_ad(NAME);
 
 
 #endif