Implement a benchmark for GrResourceCache

bench/RefCntBench.cpp

Index: bench/RefCntBench.cpp
diff --git a/bench/RefCntBench.cpp b/bench/RefCntBench.cpp
index 0110dbcb1317ebd317f82f9b0cfb03ffbbd8e062..731a6f066a57681004ac0080465230b39b4522b9 100644
--- a/bench/RefCntBench.cpp
+++ b/bench/RefCntBench.cpp
@@ -17,8 +17,12 @@ enum {
 class RefCntBench_Stack : public SkBenchmark {
 public:
     RefCntBench_Stack() {
-        fIsRendering = false;
     }
+
+    virtual bool isSuitableFor(Backend backend) SK_OVERRIDE {
+        return backend == kNonRendering_Backend;
+    }
+
 protected:
     virtual const char* onGetName() {
         return "ref_cnt_stack";
@@ -54,8 +58,12 @@ SK_DEFINE_INST_COUNT(PlacedRefCnt)
 class RefCntBench_Heap : public SkBenchmark {
 public:
     RefCntBench_Heap() {
-        fIsRendering = false;
     }
+
+    virtual bool isSuitableFor(Backend backend) SK_OVERRIDE {
+        return backend == kNonRendering_Backend;
+    }
+
 protected:
     virtual const char* onGetName() {
         return "ref_cnt_heap";
@@ -80,8 +88,12 @@ private:
 class RefCntBench_New : public SkBenchmark {
 public:
     RefCntBench_New() {
-        fIsRendering = false;
     }
+
+    virtual bool isSuitableFor(Backend backend) SK_OVERRIDE {
+        return backend == kNonRendering_Backend;
+    }
+
 protected:
     virtual const char* onGetName() {
         return "ref_cnt_new";
@@ -107,8 +119,12 @@ private:
 class WeakRefCntBench_Stack : public SkBenchmark {
 public:
     WeakRefCntBench_Stack() {
-        fIsRendering = false;
     }
+
+    virtual bool isSuitableFor(Backend backend) SK_OVERRIDE {
+        return backend == kNonRendering_Backend;
+    }
+
 protected:
     virtual const char* onGetName() {
         return "ref_cnt_stack_weak";
@@ -137,8 +153,12 @@ public:
 class WeakRefCntBench_Heap : public SkBenchmark {
 public:
     WeakRefCntBench_Heap() {
-        fIsRendering = false;
     }
+
+    virtual bool isSuitableFor(Backend backend) SK_OVERRIDE {
+        return backend == kNonRendering_Backend;
+    }
+
 protected:
     virtual const char* onGetName() {
         return "ref_cnt_heap_weak";
@@ -163,8 +183,12 @@ private:
 class WeakRefCntBench_New : public SkBenchmark {
 public:
     WeakRefCntBench_New() {
-        fIsRendering = false;
     }
+
+    virtual bool isSuitableFor(Backend backend) SK_OVERRIDE {
+        return backend == kNonRendering_Backend;
+    }
+
 protected:
     virtual const char* onGetName() {
         return "ref_cnt_new_weak";