Stop creating static GrProcessor 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 37 matching lines @@
 #ifndef SK_IGNORE_TO_STRING
 void SkLumaColorFilter::toString(SkString* str) const {
     str->append("SkLumaColorFilter ");
 }
 #endif
 
 #if SK_SUPPORT_GPU
 class LumaColorFilterEffect : public GrFragmentProcessor {
 public:
     static const GrFragmentProcessor* Create() {
-        static LumaColorFilterEffect gLumaEffect;
-        return SkRef(&gLumaEffect);
+        return new LumaColorFilterEffect;
     }
 
     const char* name() const override { return "Luminance-to-Alpha"; }
 
     class GLProcessor : public GrGLFragmentProcessor {
     public:
         GLProcessor(const GrProcessor&) {}
 
         static void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessorKeyBuilder* b) {}
 
@@ skipping 36 matching lines @@
         inout->setToOther(kRGB_GrColorComponentFlags, GrColorPackRGBA(0, 0, 0, 0),
                           GrInvariantOutput::kWill_ReadInput);
     }
 };
 
 const GrFragmentProcessor* SkLumaColorFilter::asFragmentProcessor(GrContext*) const {
 
     return LumaColorFilterEffect::Create();
 }
 #endif