1 files changed, 5 insertions, 0 deletions
diff --git a/Source/WebKit/chromium/public/WebWidget.h b/Source/WebKit/chromium/public/WebWidget.h
index 600c523f8..b2a57d66e 100644
--- a/Source/WebKit/chromium/public/WebWidget.h
+++ b/Source/WebKit/chromium/public/WebWidget.h
@@ -48,6 +48,7 @@ class WebInputEvent;
 class WebMouseEvent;
 class WebString;
 struct WebPoint;
+struct WebRenderingStats;
 template <typename T> class WebVector;
 
 class WebWidget {
@@ -221,6 +222,10 @@ public:
     // following the call to instrumentBeginFrame().
     virtual void instrumentCancelFrame() { }
 
+    // Fills in a WebRenderingStats struct containing information about the state of the compositor.
+    // This call is relatively expensive in threaded mode as it blocks on the compositor thread.
+    virtual void renderingStats(WebRenderingStats&) const { }
+
     // The page background color. Can be used for filling in areas without
     // content.
     virtual WebColor backgroundColor() const { return 0xFFFFFFFF; /* SK_ColorWHITE */ }