Separate GL path rendering state from GrGpuGL to GrGLPathRendering

src/gpu/gl/GrGpuGL_program.cpp

Index: src/gpu/gl/GrGpuGL_program.cpp
diff --git a/src/gpu/gl/GrGpuGL_program.cpp b/src/gpu/gl/GrGpuGL_program.cpp
index beaaa903b2be535637e6a9019b03cb56794bb0ea..c4011e73142116d6156ccaca204468aa9f856efd 100644
--- a/src/gpu/gl/GrGpuGL_program.cpp
+++ b/src/gpu/gl/GrGpuGL_program.cpp
@@ -204,7 +204,7 @@ void GrGpuGL::abandonResources(){
     fProgramCache->abandon();
     fHWProgramID = 0;
     if (this->glCaps().pathRenderingSupport()) {
-        fPathRendering->abandonGpuResources();
+        this->glPathRendering()->abandonGpuResources();
     }
 }
 
@@ -222,7 +222,7 @@ bool GrGpuGL::flushGraphicsState(DrawType type, const GrDeviceCoordTexture* dstC
         const GrRenderTarget* rt = this->getDrawState().getRenderTarget();
         SkISize size;
         size.set(rt->width(), rt->height());
-        this->setProjectionMatrix(drawState.getViewMatrix(), size, rt->origin());
+        this->glPathRendering()->setProjectionMatrix(drawState.getViewMatrix(), size, rt->origin());
     } else {
         this->flushMiscFixedFunctionState();