Add counting of some GL calls

tools/bench_pictures_main.cpp

Index: tools/bench_pictures_main.cpp
diff --git a/tools/bench_pictures_main.cpp b/tools/bench_pictures_main.cpp
index 2eda73c40fa245a2197b00ef689d75f72267add4..ade93fc3e6f05108df5aa8695818d41b929269cf 100644
--- a/tools/bench_pictures_main.cpp
+++ b/tools/bench_pictures_main.cpp
@@ -54,6 +54,11 @@ DEFINE_bool(trackDeferredCaching, false, "Only meaningful with --deferImageDecod
             "SK_LAZY_CACHE_STATS set to true. Report percentage of cache hits when using "
             "deferred image decoding.");
 
+#if GR_GPU_STATS
+DEFINE_bool(gpuStats, false, "Only meaningful with gpu configurations. "
+            "Report some GPU call statistics.");
+#endif
+
 DEFINE_bool(preprocess, false, "If true, perform device specific preprocessing before timing.");
 
 // Buildbot-specific parameters
@@ -476,6 +481,15 @@ int tool_main(int argc, char** argv) {
                  (double) gTotalCacheHits / (gTotalCacheHits + gTotalCacheMisses));
     }
 #endif
+
+#if GR_GPU_STATS
+    if (FLAGS_gpuStats && benchmark.renderer()->isUsingGpuDevice()) {
+        GrContext* ctx = benchmark.renderer()->getGrContext();
+        SkDebugf("RenderTarget Binds: %d\n", ctx->gpuStats()->renderTargetBinds());
+        SkDebugf("Shader Compilations: %d\n", ctx->gpuStats()->shaderCompilations());
+    }
+#endif
+
     gWriter.end();
     return 0;
 }