Start to propagate constness of GrPipelineBuilder up the stack

src/gpu/GrAAHairLinePathRenderer.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 "GrAAHairLinePathRenderer.h"
 
 #include "GrBatch.h"
@@ skipping 965 matching lines @@
                                           const SkMatrix& viewMatrix,
                                           const SkPath& path,
                                           const GrStrokeInfo& stroke,
                                           bool) {
     SkIRect devClipBounds;
     pipelineBuilder->clip().getConservativeBounds(pipelineBuilder->getRenderTarget(),
                                                   &devClipBounds);
 
     SkAutoTUnref<GrBatch> batch(create_hairline_batch(color, viewMatrix, path, stroke,
                                                       devClipBounds));
-    target->drawBatch(pipelineBuilder, batch);
+    target->drawBatch(*pipelineBuilder, batch);
 
     return true;
 }
 
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 
 #ifdef GR_TEST_UTILS
 
 BATCH_TEST_DEFINE(AAHairlineBatch) {
     GrColor color = GrRandomColor(random);
     SkMatrix viewMatrix = GrTest::TestMatrix(random);
     GrStrokeInfo stroke(SkStrokeRec::kHairline_InitStyle);
     SkPath path = GrTest::TestPath(random);
     SkIRect devClipBounds;
     devClipBounds.setEmpty();
     return create_hairline_batch(color, viewMatrix, path, stroke, devClipBounds);
 }
 
 #endif