Improve the curve tessellation subdivision of the path renderers.

src/gpu/GrDefaultPathRenderer.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 "GrDefaultPathRenderer.h"
 
 #include "GrBatch.h"
@@ skipping 640 matching lines @@
                         }
                     }
                     break;
                 default:
                     SkDEBUGFAIL("Unknown path fFill!");
                     return false;
             }
         }
     }
 
-    SkScalar tol = SK_Scalar1;
+    SkScalar tol = GrPathUtils::kDefaultTolerance;
     SkScalar srcSpaceTol = GrPathUtils::scaleToleranceToSrc(tol, viewMatrix, path.getBounds());
 
     SkRect devBounds;
     GetPathDevBounds(path, pipelineBuilder->getRenderTarget(), viewMatrix, &devBounds);
 
     for (int p = 0; p < passCount; ++p) {
         pipelineBuilder->setDrawFace(drawFace[p]);
         if (passes[p]) {
             *pipelineBuilder->stencil() = *passes[p];
         }
@@ skipping 73 matching lines @@
 
 void GrDefaultPathRenderer::onStencilPath(GrDrawTarget* target,
                                           GrPipelineBuilder* pipelineBuilder,
                                           const SkMatrix& viewMatrix,
                                           const SkPath& path,
                                           const SkStrokeRec& stroke) {
     SkASSERT(SkPath::kInverseEvenOdd_FillType != path.getFillType());
     SkASSERT(SkPath::kInverseWinding_FillType != path.getFillType());
     this->internalDrawPath(target, pipelineBuilder, GrColor_WHITE, viewMatrix, path, stroke, true);
 }