Refactor GrBufferAllocPools to use resource cache

include/gpu/GrTextureProvider.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrTextureProvider_DEFINED
 #define GrTextureProvider_DEFINED
 
@@ skipping 140 matching lines @@
         fCache = NULL;
         fGpu = NULL;
     }
 
     GrResourceCache* cache() { return fCache; }
     const GrResourceCache* cache() const { return fCache; }
 
     GrGpu* gpu() { return fGpu; }
     const GrGpu* gpu() const { return fGpu; }
 
-private:
     bool isAbandoned() const {
         SkASSERT(SkToBool(fGpu) == SkToBool(fCache));
         return !SkToBool(fCache);
     }
 
+private:
     GrResourceCache* fCache;
     GrGpu* fGpu;
 };
 
 #endif