Cast the scratch resource key in order to fix a warning

src/gpu/GrResourceCache2.cpp

 
 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "GrResourceCache2.h"
 #include "GrGpuResource.h"  
 
 #include "SkChecksum.h"
 #include "SkGr.h"
 #include "SkMessageBus.h"
 
 DECLARE_SKMESSAGEBUS_MESSAGE(GrResourceInvalidatedMessage);
 
 //////////////////////////////////////////////////////////////////////////////
 
 GrScratchKey::ResourceType GrScratchKey::GenerateResourceType() {
     static int32_t gType = kInvalidResourceType + 1;
 
-    int32_t type = sk_atomic_inc(&gType);
+    ResourceType type = static_cast<ResourceType>(sk_atomic_inc(&gType));
     if (kInvalidResourceType == type) {
         SkFAIL("Too many Resource Types");
     }
 
-    return static_cast<ResourceType>(type);
+    return type;
 }
 
 
 void GrScratchKey::Builder::finish() {
     if (NULL == fKey) {
         return;
     }
     GR_STATIC_ASSERT(0 == kHash_MetaDataIdx);
     fKey->fKey[kHash_MetaDataIdx] = 
         SkChecksum::Compute(&fKey->fKey[kHash_MetaDataIdx + 1], fKey->size() - sizeof(uint32_t));
@@ skipping 443 matching lines @@
 
     SkDebugf("Budget: %d items %d bytes\n", fMaxCount, fMaxBytes);
     SkDebugf("\t\tEntry Count: current %d"
              " (%d budgeted, %d wrapped, %d locked, %d scratch %.2g%% full), high %d\n",
         fCount, fBudgetedCount, wrapped, locked, scratch, countUtilization, fHighWaterCount);
     SkDebugf("\t\tEntry Bytes: current %d (budgeted %d, %.2g%% full, %d unbudgeted) high %d\n",
                 fBytes, fBudgetedBytes, byteUtilization, unbudgetedSize, fHighWaterBytes);
 }
 
 #endif