Implement a benchmark for GrResourceCache

bench/WriterBench.cpp

 
 /*
  * Copyright 2012 The Android Open Source Project
  *
  * 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 "SkWriter32.h"
 
 class WriterBench : public SkBenchmark {
 public:
-    WriterBench() { fIsRendering = false; }
+    WriterBench() { }
+
+    virtual bool isSuitableFor(Backend backend) SK_OVERRIDE {
+        return backend == kNonRendering_Backend;
+    }
 
 protected:
     virtual const char* onGetName() SK_OVERRIDE {
         return "writer";
     }
 
     virtual void onDraw(SkCanvas*) SK_OVERRIDE {
         static const char gStr[] = "abcdefghimjklmnopqrstuvwxyz";
         static const size_t gLen = strlen(gStr);
         SkWriter32 writer(256 * 4);
         for (int i = 0; i < this->getLoops(); i++) {
             for (size_t j = 0; j <= gLen; j++) {
                 writer.writeString(gStr, j);
             }
         }
     }
 
 private:
     typedef SkBenchmark INHERITED;
 };
 
 ////////////////////////////////////////////////////////////////////////////////
 
 DEF_BENCH( return new WriterBench(); )