Simplify benchmark internal API.

bench/MemoryBench.cpp

Index: bench/MemoryBench.cpp
diff --git a/bench/MemoryBench.cpp b/bench/MemoryBench.cpp
index e3ac2c33b3b3d01e68327d91461b56b15b2e7364..19919ab635e5b180aadb20a4018d4cebfdcfa8bb 100644
--- a/bench/MemoryBench.cpp
+++ b/bench/MemoryBench.cpp
@@ -30,14 +30,14 @@ protected:
         return fName.c_str();
     }
 
-    virtual void onDraw(SkCanvas*) SK_OVERRIDE {
+    virtual void onDraw(const int loops, SkCanvas*) SK_OVERRIDE {
         size_t inc = fMinSize >> 4;
         SkASSERT(inc > 0);
         size_t total = fMinSize * 64;
 
         SkChunkAlloc alloc(fMinSize);
 
-        for (int i = 0; i < this->getLoops(); ++i) {
+        for (int i = 0; i < loops; ++i) {
             size_t size = 0;
             int calls = 0;
             while (size < total) {
@@ -99,8 +99,8 @@ protected:
         return fName.c_str();
     }
 
-    virtual void onDraw(SkCanvas*) SK_OVERRIDE {
-        for (int i = 0; i < this->getLoops(); i++) {
+    virtual void onDraw(const int loops, SkCanvas*) SK_OVERRIDE {
+        for (int i = 0; i < loops; i++) {
             int* zeros = fUseCalloc ? calloc(fNum) : malloc_bzero(fNum);
             if (fRead) {
                 volatile int x = 15;