Implement path cover with nv_path_rendering

src/gpu/gl/GrGLShaderBuilder.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 "gl/GrGLShaderBuilder.h"
 #include "gl/GrGLProgram.h"
 #include "gl/GrGLUniformHandle.h"
@@ skipping 93 matching lines @@
     , fSetupFragPosition(false)
     , fTopLeftFragPosRead(kTopLeftFragPosRead_FragPosKey == desc.getHeader().fFragPosKey)
     , fNumTexGenUnits(0) {
 
     const GrGLProgramDesc::KeyHeader& header = desc.getHeader();
 
     // We only go without a vertex shader if every effect supports vertexless mode, the context
     // has fixed function/path rendering support, and position is the only vertex attribute.
     if (hasVertexShaderEffects ||
         !ctxInfo.caps()->fixedFunctionSupport() ||
-        !ctxInfo.caps()->pathStencilingSupport() ||
+        !ctxInfo.caps()->pathRenderingSupport() ||
         -1 != header.fLocalCoordAttributeIndex ||
         -1 != header.fColorAttributeIndex ||
         -1 != header.fCoverageAttributeIndex) {
         fVertexBuilder.reset(SkNEW_ARGS(VertexBuilder, (this, desc)));
     }
 
     // Emit code to read the dst copy textue if necessary.
     if (kNoDstRead_DstReadKey != header.fDstReadKey &&
         GrGLCaps::kNone_FBFetchType == ctxInfo.caps()->fbFetchType()) {
         bool topDown = SkToBool(kTopLeftOrigin_DstReadKeyBit & header.fDstReadKey);
@@ skipping 604 matching lines @@
     for (const AttributePair* attrib = this->getEffectAttributes().begin();
          attrib != attribEnd;
          ++attrib) {
         if (attrib->fIndex == attributeIndex) {
             return &attrib->fName;
         }
     }
 
     return NULL;
 }