Make textures register with GrResourceCache2 as scratch.

tests/GrBinHashKeyTest.cpp

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 // This is a GPU-backend specific test
 #if SK_SUPPORT_GPU
 
+#include "GrMurmur3HashKey.h"
 #include "GrBinHashKey.h"
 
 #include "Test.h"
 
 template<typename KeyType> static void TestHash(skiatest::Reporter* reporter) {
     const char* testStringA_ = "abcdABCD";
     const char* testStringB_ = "abcdBBCD";
     const uint32_t* testStringA = reinterpret_cast<const uint32_t*>(testStringA_);
     const uint32_t* testStringB = reinterpret_cast<const uint32_t*>(testStringB_);
 
@@ skipping 17 matching lines @@
 DEF_TEST(GrBinHashKey, reporter) {
     enum {
         kDataLenUsedForKey = 8
     };
 
     TestHash<GrBinHashKey<kDataLenUsedForKey> >(reporter);
     TestHash<GrMurmur3HashKey<kDataLenUsedForKey> >(reporter);
 }
 
 #endif