Revert of Use presence of a content key as non-scratch indicator

src/gpu/GrGpuResource.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "GrGpuResource.h"
@@ skipping 83 matching lines @@
     }
 }
 
 void GrGpuResource::setScratchKey(const GrResourceKey& scratchKey) {
     SkASSERT(fScratchKey.isNullScratch());
     SkASSERT(scratchKey.isScratch());
     SkASSERT(!scratchKey.isNullScratch());
     fScratchKey = scratchKey;
 }
 
-const GrResourceKey* GrGpuResource::getContentKey() const {
-    if (fCacheEntry && !fCacheEntry->key().isScratch()) {
-        return &fCacheEntry->key();
-    }
-    return NULL;
-}
-
 uint32_t GrGpuResource::CreateUniqueID() {
     static int32_t gUniqueID = SK_InvalidUniqueID;
     uint32_t id;
     do {
         id = static_cast<uint32_t>(sk_atomic_inc(&gUniqueID) + 1);
     } while (id == SK_InvalidUniqueID);
     return id;
 }