Implement a benchmark for GrResourceCache

bench/MemsetBench.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBenchmark.h"
 #include "SkCanvas.h"
 #include "SkUtils.h"
@@ skipping 16 matching lines @@
         MEMSET32 = 32
     };
 
 public:
     MemsetBench(MemsetType type, size_t minSize, size_t maxSize)  {
         SkASSERT((minSize < maxSize) && (maxSize <= kBufferSize));
         fMinSize = minSize;
         fMaxSize = maxSize;
         fName.printf("memset%d_" SK_SIZE_T_SPECIFIER "_" SK_SIZE_T_SPECIFIER,
                      type, minSize, maxSize);
-        fIsRendering = false;
+    }
+
+    virtual bool isSuitableFor(Backend backend) SK_OVERRIDE {
+        return backend == kNonRendering_Backend;
     }
 
     virtual void performTest() = 0;
 
 protected:
     virtual const char* onGetName() SK_OVERRIDE {
         return fName.c_str();
     }
 
     virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
@@ skipping 56 matching lines @@
 DEF_BENCH(return new Memset32Bench(3000, 4000);)
 DEF_BENCH(return new Memset32Bench(4000, 5000);)
 
 DEF_BENCH(return new Memset16Bench(1, 600);)
 DEF_BENCH(return new Memset16Bench(600, 800);)
 DEF_BENCH(return new Memset16Bench(800, 1000);)
 DEF_BENCH(return new Memset16Bench(1000, 2000);)
 DEF_BENCH(return new Memset16Bench(2000, 3000);)
 DEF_BENCH(return new Memset16Bench(3000, 4000);)
 DEF_BENCH(return new Memset16Bench(4000, 5000);)