Making GrGpuResource::release public for special case in Blink

include/gpu/GrGpuResource.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 GrGpuResource_DEFINED
 #define GrGpuResource_DEFINED
 
@@ skipping 156 matching lines @@
      */
     uint32_t getUniqueID() const { return fUniqueID; }
 
     /**
      * Internal-only helper class used for cache manipulations of the reosurce.
      */
     class CacheAccess;
     inline CacheAccess cacheAccess();
     inline const CacheAccess cacheAccess() const;
 
+    /**
+     * Removes references to objects in the underlying 3D API without freeing them.
+     * Called by CacheAccess.
+     * In general this method should not be called outside of skia. It was
+     * made by public for a special case where it needs to be called in Blink
+     * when a texture becomes unsafe to use after having been shared through
+     * a texture mailbox.
+     */
+    void abandon();
+
 protected:
     // This must be called by every GrGpuObject. It should be called once the object is fully
     // initialized (i.e. not in a base class constructor).
     void registerWithCache();
 
     GrGpuResource(GrGpu*, bool isWrapped);
     virtual ~GrGpuResource();
 
     GrGpu* getGpu() const { return fGpu; }
 
@@ skipping 17 matching lines @@
      * By default resources are not usable as scratch. This should only be called once.
      **/
     void setScratchKey(const GrResourceKey& scratchKey);
 
 private:
     /**
      * Frees the object in the underlying 3D API. Called by CacheAccess.
      */
     void release();
 
-    /**
-     * Removes references to objects in the underlying 3D API without freeing them. 
-     * Called by CacheAccess.
-     */
-    void abandon();
-
     virtual size_t onGpuMemorySize() const = 0;
 
     // See comments in CacheAccess.
     bool setContentKey(const GrResourceKey& contentKey);
     void setBudgeted(bool countsAgainstBudget);
     void notifyIsPurgable() const;
     void removeScratchKey();
 
 #ifdef SK_DEBUG
     friend class GrGpu; // for assert in GrGpu to access getGpu
@@ skipping 36 matching lines @@
     mutable size_t          fGpuMemorySize;
 
     uint32_t                fFlags;
     const uint32_t          fUniqueID;
 
     typedef GrIORef<GrGpuResource> INHERITED;
     friend class GrIORef<GrGpuResource>; // to access notifyIsPurgable.
 };
 
 #endif