Make GrDrawState and GrEffectStage use the pending io/exec ref mechanisms.

include/gpu/GrProgramElementRef.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrProgramElementRef_DEFINED
 #define GrProgramElementRef_DEFINED
 
@@ skipping 24 matching lines @@
     void convertToPendingExec() {
         SkASSERT(!fOwnPendingExec);
         fObj->convertRefToPendingExecution();
         fOwnPendingExec = true;
     }
 
     T* get() const { return fObj; }
     operator T*() { return fObj; }
 
     /** If T is const, the type returned from operator-> will also be const. */
-    typedef typename SkTConstType<typename SkAutoTUnref<T>::BlockRef<T>,
+    typedef typename SkTConstType<typename SkAutoTUnref<T>::template BlockRef<T>,
                                   SkTIsConst<T>::value>::type BlockRefType;
 
     /**
      * GrProgramElementRef assumes ownership of the ref and manages converting the ref to a
      * pending execution. As a result, it is an error for the user to ref or unref through
      * GrProgramElementRef. Therefore operator-> returns BlockRef<T>*.
      */
     BlockRefType *operator->() const {
         return static_cast<BlockRefType*>(fObj);
     }
 
     ~GrProgramElementRef() {
         if (fObj) {
             if (fOwnPendingExec) {
                 fObj->completedExecution();
             } else {
                 fObj->unref();
             }
         }
     }
 
 private:
     bool fOwnPendingExec;
     T*   fObj;
 
     typedef SkNoncopyable INHERITED;
 };
 #endif