Revert of Remove GrStagedProcessor, remove the word Stage as it applies to FPs

src/gpu/gl/GrGLPathProgram.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 "GrGLPathProgram.h"
 #include "GrGLPathProcessor.h"
 #include "GrGLGpu.h"
@@ skipping 13 matching lines @@
                 xferProcessor, fragmentProcessors, passSamplerUniforms)
     , fPathProgramDataManager(gpu, fProgramID, separableVaryings) {
 }
 void GrGLPathProgram::didSetData() {
     GrGLPathProcessor* pathProc =
             static_cast<GrGLPathProcessor*>(fGeometryProcessor.get()->fGLProc.get());
     pathProc->didSetData(fGpu->glPathRendering());
 }
 
 void GrGLPathProgram::setTransformData(const GrPrimitiveProcessor& primProc,
-                                       const GrFragmentProcessor& processor,
+                                       const GrPendingFragmentStage& proc,
                                        int index,
                                        GrGLInstalledFragProc* ip) {
     GrGLPathProcessor* pathProc =
             static_cast<GrGLPathProcessor*>(fGeometryProcessor.get()->fGLProc.get());
     pathProc->setTransformData(primProc, fPathProgramDataManager, index,
-                               processor.coordTransforms());
+                               proc.processor()->coordTransforms());
 }
 
 void GrGLPathProgram::onSetRenderTargetState(const GrPrimitiveProcessor& primProc,
                                              const GrPipeline& pipeline) {
     SkASSERT(!primProc.willUseGeoShader() && primProc.numAttribs() == 0);
     const GrRenderTarget* rt = pipeline.getRenderTarget();
     SkISize size;
     size.set(rt->width(), rt->height());
     const GrPathProcessor& pathProc = primProc.cast<GrPathProcessor>();
     fGpu->glPathRendering()->setProjectionMatrix(pathProc.viewMatrix(),
                                                  size, rt->origin());
 }