Check for xfer barriers in GrBatch, auto-issue barriers in GrGpu

src/gpu/GrTessellatingPathRenderer.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrTessellatingPathRenderer.h"
 
 #include "GrBatchTarget.h"
@@ skipping 1558 matching lines @@
         batchTarget->initDraw(gp, this->pipeline());
         SkASSERT(gp->getVertexStride() == sizeof(SkPoint));
 
         GrPrimitiveType primitiveType = WIREFRAME ? kLines_GrPrimitiveType
                                                   : kTriangles_GrPrimitiveType;
         GrVertices vertices;
         vertices.init(primitiveType, vertexBuffer.get(), 0, actualCount);
         batchTarget->draw(vertices);
     }
 
-    bool onCombineIfPossible(GrBatch*) override {
-        return false;
-    }
+    bool onCombineIfPossible(GrBatch*, const GrCaps&) override { return false; }
 
 private:
     TessellatingPathBatch(const GrColor& color,
                           const SkPath& path,
                           const GrStrokeInfo& stroke,
                           const SkMatrix& viewMatrix,
                           const SkRect& clipBounds)
       : fColor(color)
       , fPath(path)
       , fStroke(stroke)
@@ skipping 59 matching lines @@
     bool result = viewMatrix.invert(&vmi);
     if (!result) {
         SkFAIL("Cannot invert matrix\n");
     }
     vmi.mapRect(&clipBounds);
     GrStrokeInfo strokeInfo = GrTest::TestStrokeInfo(random);
     return TessellatingPathBatch::Create(color, path, strokeInfo, viewMatrix, clipBounds);
 }
 
 #endif