Make skpaint->grpaint flow work for composing draws

gm/dcshader.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 "gm.h"
 #if SK_SUPPORT_GPU
@@ skipping 86 matching lines @@
     GrCoordTransform fDeviceTransform;
 };
 
 const GrFragmentProcessor* DCShader::asFragmentProcessor(
                                                  GrContext*,
                                                  const SkMatrix& viewM,
                                                  const SkMatrix* localMatrix,
                                                  SkFilterQuality,
                                                  GrProcessorDataManager* procDataManager) const {
     SkAutoTUnref<const GrFragmentProcessor> inner(new DCFP(procDataManager, fDeviceMatrix));
-    return GrFragmentProcessor::MulOuputByInputAlpha(inner);
+    return GrFragmentProcessor::MulOutputByInputAlpha(inner);
 }
 
 class DCShaderGM : public GM {
 public:
     DCShaderGM() {
         this->setBGColor(sk_tool_utils::color_to_565(0xFFAABBCC));
     }
 
     ~DCShaderGM() override {
         for (int i = 0; i < fPrims.count(); ++i) {
@@ skipping 173 matching lines @@
     };
 
     SkTArray<Prim*> fPrims;
 
     typedef GM INHERITED;
 };
 
 DEF_GM(return new DCShaderGM;)
 }
 #endif