Began logging more gpu stats from nanobench

bench/ResultsWriter.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  *
  * Classes for writing out bench results in various formats.
  */
 
 #ifndef SkResultsWriter_DEFINED
@@ skipping 69 matching lines @@
         , fRoot()
         , fResults(fRoot["results"])
         , fBench(nullptr)
         , fConfig(nullptr) {}
 
     ~NanoJSONResultsWriter() {
         this->flush();
     }
 
     // Added under "key".
-    virtual void key(const char name[], const char value[]) {
+    void key(const char name[], const char value[]) override {
         fRoot["key"][name] = value;
     }
     // Inserted directly into the root.
-    virtual void property(const char name[], const char value[]) {
+    void property(const char name[], const char value[]) override {
         fRoot[name] = value;
     }
-    virtual void bench(const char name[], int32_t x, int32_t y) {
+    void bench(const char name[], int32_t x, int32_t y) override {
         SkString id = SkStringPrintf( "%s_%d_%d", name, x, y);
         fResults[id.c_str()] = Json::Value(Json::objectValue);
         fBench = &fResults[id.c_str()];
     }
-    virtual void config(const char name[]) {
+    void config(const char name[]) override {
         SkASSERT(fBench);
         fConfig = &(*fBench)[name];
     }
-    virtual void configOption(const char name[], const char* value) {
+    void configOption(const char name[], const char* value) override {
         (*fConfig)["options"][name] = value;
     }
-    virtual void metric(const char name[], double ms) {
+    void metric(const char name[], double ms) override {
         // Don't record if nan, or -nan.
         if (sk_double_isnan(ms)) {
             return;
         }
         SkASSERT(fConfig);
         (*fConfig)[name] = ms;
     }
 
     // Flush to storage now please.
-    virtual void flush() {
+    void flush() override {
         SkString dirname = SkOSPath::Dirname(fFilename.c_str());
         if (!sk_exists(dirname.c_str(), kWrite_SkFILE_Flag)) {
             if (!sk_mkdir(dirname.c_str())) {
                 SkDebugf("Failed to create directory.");
             }
         }
         SkFILEWStream stream(fFilename.c_str());
         stream.writeText(Json::StyledWriter().write(fRoot).c_str());
         stream.flush();
     }
 
 private:
     SkString fFilename;
     Json::Value fRoot;
     Json::Value& fResults;
     Json::Value* fBench;
     Json::Value* fConfig;
 };
 
 
 #endif