Move GrInvariantOutput out of GrProcessor and into its own class.

src/gpu/GrAARectRenderer.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 "GrAARectRenderer.h"
 #include "GrGpu.h"
+#include "GrInvariantOutput.h"
 #include "gl/builders/GrGLProgramBuilder.h"
 #include "gl/GrGLProcessor.h"
 #include "gl/GrGLGeometryProcessor.h"
 #include "GrTBackendProcessorFactory.h"
 #include "SkColorPriv.h"
 #include "GrGeometryProcessor.h"
 
 ///////////////////////////////////////////////////////////////////////////////
 
 namespace {
@@ skipping 491 matching lines @@
     // can't call mapRect for devInside since it calls sort
     combinedMatrix.mapPoints((SkPoint*)&devInside, (const SkPoint*)&rects[1], 2);
 
     if (devInside.isEmpty()) {
         this->fillAARect(target, devOutside, SkMatrix::I(), devOutside);
         return;
     }
 
     this->geometryStrokeAARect(target, devOutside, devOutsideAssist, devInside, true);
 }