Don't ref/unref the static src-over xp

src/gpu/gl/GrGLProgram.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrGLProgram.h"
 
 #include "GrAllocator.h"
@@ skipping 71 matching lines @@
                           SkTArray<const GrTextureAccess*>* textureBindings) {
     this->setRenderTargetState(primProc, pipeline);
 
     // we set the textures, and uniforms for installed processors in a generic way, but subclasses
     // of GLProgram determine how to set coord transforms
     fGeometryProcessor->fGLProc->setData(fProgramDataManager, primProc);
     append_texture_bindings(fGeometryProcessor.get(), primProc, textureBindings);
 
     this->setFragmentData(primProc, pipeline, textureBindings);
 
-    const GrXferProcessor& xp = *pipeline.getXferProcessor();
+    const GrXferProcessor& xp = pipeline.getXferProcessor();
     fXferProcessor->fGLProc->setData(fProgramDataManager, xp);
     append_texture_bindings(fXferProcessor.get(), xp, textureBindings);
 }
 
 void GrGLProgram::setFragmentData(const GrPrimitiveProcessor& primProc,
                                   const GrPipeline& pipeline,
                                   SkTArray<const GrTextureAccess*>* textureBindings) {
     int numProcessors = fFragmentProcessors->fProcs.count();
     for (int i = 0; i < numProcessors; ++i) {
         const GrFragmentProcessor& processor = pipeline.getFragmentProcessor(i);
@@ skipping 37 matching lines @@
             fRenderTargetState.getRTAdjustmentVec(rtAdjustmentVec);
             fProgramDataManager.set4fv(fBuiltinUniformHandles.fRTAdjustmentUni, 1, rtAdjustmentVec);
         }
     } else {
         SkASSERT(fGpu->glCaps().shaderCaps()->pathRenderingSupport());
         const GrPathProcessor& pathProc = primProc.cast<GrPathProcessor>();
         fGpu->glPathRendering()->setProjectionMatrix(pathProc.viewMatrix(),
                                                      size, rt->origin());
     }
 }