Added tree structure to GrGLFragmentProcessor, i.e. GL instances

src/effects/SkLumaColorFilter.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkLumaColorFilter.h"
 
 #include "SkColorPriv.h"
@@ skipping 47 matching lines @@
 #if SK_SUPPORT_GPU
 class LumaColorFilterEffect : public GrFragmentProcessor {
 public:
     static GrFragmentProcessor* Create() {
         GR_CREATE_STATIC_PROCESSOR(gLumaEffect, LumaColorFilterEffect, ());
         return SkRef(gLumaEffect);
     }
 
     const char* name() const override { return "Luminance-to-Alpha"; }
 
-    GrGLFragmentProcessor* createGLInstance() const override {
-        return SkNEW_ARGS(GLProcessor, (*this));
-    }
-
     class GLProcessor : public GrGLFragmentProcessor {
     public:
         GLProcessor(const GrProcessor&) {}
 
         static void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessorKeyBuilder* b) {}
 
         virtual void emitCode(EmitArgs& args) override {
             if (NULL == args.fInputColor) {
                 args.fInputColor = "vec4(1)";
             }
@@ skipping 11 matching lines @@
 
     private:
         typedef GrGLFragmentProcessor INHERITED;
     };
 
 private:
     LumaColorFilterEffect() {
         this->initClassID<LumaColorFilterEffect>();
     }
 
+    GrGLFragmentProcessor* onCreateGLInstance() const override {
+        return SkNEW_ARGS(GLProcessor, (*this));
+    }
+
     virtual void onGetGLProcessorKey(const GrGLSLCaps& caps,
                                      GrProcessorKeyBuilder* b) const override {
         GLProcessor::GenKey(*this, caps, b);
     }
 
     bool onIsEqual(const GrFragmentProcessor&) const override { return true; }
 
     void onComputeInvariantOutput(GrInvariantOutput* inout) const override {
         // The output is always black. The alpha value for the color passed in is arbitrary.
         inout->setToOther(kRGB_GrColorComponentFlags, GrColorPackRGBA(0, 0, 0, 0),
@@ skipping 10 matching lines @@
             *array->append() = frag;
         } else {
             frag->unref();
             SkDEBUGCODE(frag = NULL;)
         }
         return true;
     }
     return false;
 }
 #endif