Start to propagate constness of GrPipelineBuilder up the stack

src/gpu/effects/GrDashingEffect.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 "GrDashingEffect.h"
 
 #include "GrBatch.h"
@@ skipping 710 matching lines @@
     geometry.fColor = color;
     geometry.fViewMatrix = viewMatrix;
     geometry.fPhase = phase;
     geometry.fIntervals[0] = intervals[0];
     geometry.fIntervals[1] = intervals[1];
 
     return DashBatch::Create(geometry, cap, aaMode, fullDash);
 }
 
 bool GrDashingEffect::DrawDashLine(GrDrawTarget* target,
-                                   GrPipelineBuilder* pipelineBuilder, GrColor color,
+                                   const GrPipelineBuilder& pipelineBuilder, GrColor color,
                                    const SkMatrix& viewMatrix, const SkPoint pts[2],
                                    bool useAA, const GrStrokeInfo& strokeInfo) {
-    SkAutoTUnref<GrBatch> batch(create_batch(color, viewMatrix, pts, useAA, strokeInfo,
-                                    pipelineBuilder->getRenderTarget()->isUnifiedMultisampled()));
+    SkAutoTUnref<GrBatch> batch(
+            create_batch(color, viewMatrix, pts, useAA, strokeInfo,
+                         pipelineBuilder.getRenderTarget()->isUnifiedMultisampled()));
     if (!batch) {
         return false;
     }
 
     target->drawBatch(pipelineBuilder, batch);
     return true;
 }
 
 //////////////////////////////////////////////////////////////////////////////
 
@@ skipping 544 matching lines @@
     info.fIntervals = intervals;
     info.fCount = 2;
     info.fPhase = phase;
     SkDEBUGCODE(bool success = ) strokeInfo.setDashInfo(info);
     SkASSERT(success);
 
     return create_batch(color, viewMatrix, pts, useAA, strokeInfo, msaaRT);
 }
 
 #endif