Don't leak fragment processor in SkColorFilter::asFragmentProcessors implementations.

src/effects/SkColorCubeFilter.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkColorCubeFilter.h"
 #include "SkColorPriv.h"
 #include "SkOnce.h"
@@ skipping 347 matching lines @@
             desc, true, fCubeData->data(), 0));
         if (textureCube) {
             context->textureProvider()->assignUniqueKeyToTexture(key, textureCube);
         }
     }
 
     GrFragmentProcessor* frag = textureCube ? GrColorCubeEffect::Create(textureCube) : NULL;
     if (frag) {
         if (array) {
             *array->append() = frag;
+        } else {
+            frag->unref();
+            SkDEBUGCODE(frag = NULL;)
         }
         return true;
     }
     return false;
 }
 #endif