Eliminate special case nvpr batch handling

src/gpu/GrRenderTarget.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 "GrRenderTarget.h"
 
@@ skipping 87 matching lines @@
         return true;
     }
     fRenderTarget->fStencilAttachment = stencil;
     if (!fRenderTarget->completeStencilAttachment()) {
         SkSafeSetNull(fRenderTarget->fStencilAttachment);
         return false;
     }
     return true;
 }
 
+int GrRenderTargetPriv::numStencilBits() const {
+    return fRenderTarget->fStencilAttachment ? fRenderTarget->fStencilAttachment->bits() : 0;
+}
+
 const GrGpu::MultisampleSpecs&
 GrRenderTargetPriv::getMultisampleSpecs(const GrStencilSettings& stencil) const {
     return fRenderTarget->getGpu()->getMultisampleSpecs(fRenderTarget, stencil);
 }
 
 GrRenderTarget::SampleConfig GrRenderTarget::ComputeSampleConfig(const GrCaps& caps,
                                                                  int sampleCnt) {
     return (caps.usesMixedSamples() && sampleCnt > 0)
                         ? GrRenderTarget::kStencil_SampleConfig
                         : GrRenderTarget::kUnified_SampleConfig;
 }