Clean up clipping code a bit

src/gpu/effects/GrConfigConversionEffect.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrConfigConversionEffect.h"
 #include "GrContext.h"
 #include "GrInvariantOutput.h"
@@ skipping 138 matching lines @@
 
 void GrConfigConversionEffect::getGLProcessorKey(const GrGLCaps& caps,
                                                  GrProcessorKeyBuilder* b) const {
     GrGLConfigConversionEffect::GenKey(*this, caps, b);
 }
 
 GrGLFragmentProcessor* GrConfigConversionEffect::createGLInstance() const {
     return SkNEW_ARGS(GrGLConfigConversionEffect, (*this));
 }
 
+
+
 void GrConfigConversionEffect::TestForPreservingPMConversions(GrContext* context,
                                                               PMConversion* pmToUPMRule,
                                                               PMConversion* upmToPMRule) {
     *pmToUPMRule = kNone_PMConversion;
     *upmToPMRule = kNone_PMConversion;
     SkAutoTMalloc<uint32_t> data(256 * 256 * 3);
     uint32_t* srcData = data.get();
     uint32_t* firstRead = data.get() + 256 * 256;
     uint32_t* secondRead = data.get() + 2 * 256 * 256;
 
@@ skipping 109 matching lines @@
             kNone_PMConversion != pmConversion) {
             // The PM conversions assume colors are 0..255
             return NULL;
         }
         return SkNEW_ARGS(GrConfigConversionEffect, (texture,
                                                      swapRedAndBlue,
                                                      pmConversion,
                                                      matrix));
     }
 }