Make non-AA hairline stroke rects snap to pixels centers so they close.

src/gpu/GrClipMaskManager.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 "GrClipMaskManager.h"
 #include "GrAAConvexPathRenderer.h"
 #include "GrAAHairLinePathRenderer.h"
@@ skipping 729 matching lines @@
             const Element* element = iter.get();
 
             GrPipelineBuilder pipelineBuilder;
             pipelineBuilder.setClip(clip);
             pipelineBuilder.setRenderTarget(rt);
 
             pipelineBuilder.setDisableColorXPFactory();
 
             // if the target is MSAA then we want MSAA enabled when the clip is soft
             if (rt->isMultisampled()) {
-                pipelineBuilder.setState(GrPipelineBuilder::kHWAntialias_StateBit, element->isAA());
+                pipelineBuilder.setState(GrPipelineBuilder::kHWAntialias_Flag, element->isAA());
             }
 
             bool fillInverted = false;
             // enabled at bottom of loop
             fClipMode = kIgnoreClip_StencilClipMode;
 
             // This will be used to determine whether the clip shape can be rendered into the
             // stencil with arbitrary stencil settings.
             GrPathRenderer::StencilSupport stencilSupport;
 
@@ skipping 366 matching lines @@
     fAACache.setContext(clipTarget->getContext());
 }
 
 void GrClipMaskManager::adjustPathStencilParams(const GrStencilAttachment* stencilAttachment,
                                                 GrStencilSettings* settings) {
     if (stencilAttachment) {
         int stencilBits = stencilAttachment->bits();
         this->adjustStencilParams(settings, fClipMode, stencilBits);
     }
 }