Auto-compare GrProcessors' texture accesses in isEqual().

src/gpu/effects/GrMatrixConvolutionEffect.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 "gl/builders/GrGLProgramBuilder.h"
 #include "GrMatrixConvolutionEffect.h"
 #include "gl/GrGLProcessor.h"
 #include "gl/GrGLSL.h"
@@ skipping 160 matching lines @@
 
 GrMatrixConvolutionEffect::~GrMatrixConvolutionEffect() {
 }
 
 const GrBackendFragmentProcessorFactory& GrMatrixConvolutionEffect::getFactory() const {
     return GrTBackendFragmentProcessorFactory<GrMatrixConvolutionEffect>::getInstance();
 }
 
 bool GrMatrixConvolutionEffect::onIsEqual(const GrFragmentProcessor& sBase) const {
     const GrMatrixConvolutionEffect& s = sBase.cast<GrMatrixConvolutionEffect>();
-    return this->texture(0) == s.texture(0) &&
-           fKernelSize == s.kernelSize() &&
+    return fKernelSize == s.kernelSize() &&
            !memcmp(fKernel, s.kernel(),
                    fKernelSize.width() * fKernelSize.height() * sizeof(float)) &&
            fGain == s.gain() &&
            fBias == s.bias() &&
            fKernelOffset == s.kernelOffset() &&
            fConvolveAlpha == s.convolveAlpha() &&
            fDomain == s.domain();
 }
 
 // Static function to create a 2D convolution
@@ skipping 73 matching lines @@
     return GrMatrixConvolutionEffect::Create(textures[texIdx],
                                              bounds,
                                              kernelSize,
                                              kernel.get(),
                                              gain,
                                              bias,
                                              kernelOffset,
                                              tileMode,
                                              convolveAlpha);
 }