Remove unused enum value and member of GrGpuObject

include/gpu/GrGpuObject.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGpuObject_DEFINED
 #define GrGpuObject_DEFINED
 
@@ skipping 55 matching lines @@
     virtual ~GrGpuObject();
 
     GrGpu* getGpu() const { return fGpu; }
 
     // Derived classes should always call their parent class' onRelease
     // and onAbandon methods in their overrides.
     virtual void onRelease() {};
     virtual void onAbandon() {};
 
     bool isWrapped() const { return kWrapped_FlagBit & fFlags; }
-    bool needsDeferredUnref() const { return SkToBool(kDeferredUnref_FlagBit & fFlags); }
 
 private:
 #ifdef SK_DEBUG
     friend class GrGpu; // for assert in GrGpu to access getGpu
 #endif
 
     // We're in an internal doubly linked list
     SK_DECLARE_INTERNAL_LLIST_INTERFACE(GrGpuObject);
 
     GrGpu*              fGpu;               // not reffed. The GrGpu can be deleted while there
                                             // are still live GrGpuObjects. It will call
                                             // release() on all such objects in its destructor.
-    mutable int         fDeferredRefCount;  // How many references in deferred drawing buffers.
-
     enum Flags {
         /**
          * This object wraps a GPU object given to us by the user.
          * Lifetime management is left up to the user (i.e., we will not
          * free it).
          */
         kWrapped_FlagBit         = 0x1,
-
-        /**
-         * This texture should be de-refed when the deferred ref count goes
-         * to zero. An object gets into this state when the resource cache
-         * is holding a ref-of-obligation (i.e., someone needs to own it but
-         * no one else wants to) but doesn't really want to keep it around.
-         */
-        kDeferredUnref_FlagBit  = 0x2,
     };
     uint32_t         fFlags;
 
     typedef GrCacheable INHERITED;
 };
 
 #endif