Make GPU benchmarking numAnimationFrames and totalPaintTime work in software mode.

content/renderer/gpu/gpu_benchmarking_extension.cc

Index: content/renderer/gpu/gpu_benchmarking_extension.cc
diff --git a/content/renderer/gpu/gpu_benchmarking_extension.cc b/content/renderer/gpu/gpu_benchmarking_extension.cc
index e7c61b0602e0c23ad07f07d7eb6bf32bc5458c9a..edb21989311fa09096e506bd41fbf390880e8e37 100644
--- a/content/renderer/gpu/gpu_benchmarking_extension.cc
+++ b/content/renderer/gpu/gpu_benchmarking_extension.cc
@@ -6,8 +6,6 @@
 #include "content/renderer/render_view_impl.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebRenderingStats.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
 #include "v8/include/v8.h"
 
 using WebKit::WebFrame;
@@ -66,8 +64,12 @@ class GpuBenchmarkingWrapper : public v8::Extension {
     if (!web_view)
       return v8::Undefined();
 
+    RenderViewImpl* render_view_impl = RenderViewImpl::FromWebView(web_view);
+    if (!render_view_impl)
+      return v8::Undefined();
+
     WebRenderingStats stats;
-    web_view->renderingStats(stats);
+    render_view_impl->GetRenderingStats(stats);
 
     v8::Handle<v8::Object> stats_object = v8::Object::New();
     if (stats.numAnimationFrames)