Blink changes to record interest rects for http://w3c.github.io/frame-timing/

public/platform/WebFrameTimingEvent.h

+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef WebFrameTimingEvent_h
+#define WebFrameTimingEvent_h
+
+namespace blink {
+
+// A struct to pass PerformanceRenderEvent or PerformanceCompositeEvent info
+// to Blink.
+struct WebFrameTimingEvent {
+    WebFrameTimingEvent(unsigned sourceFrame, double startTime, double finishTime)
+        : sourceFrame(sourceFrame)
+        , startTime(startTime)
+        , finishTime(finishTime)
+    {
+    }
+
+    WebFrameTimingEvent(unsigned sourceFrame, double startTime)
+        : sourceFrame(sourceFrame)
+        , startTime(startTime)
+    {
+    }
+
+    WebFrameTimingEvent() { }
+
+    WebFrameTimingEvent& operator=(const WebFrameTimingEvent& rhs)
+    {
+        sourceFrame = rhs.sourceFrame;
+        startTime = rhs.startTime;
+        finishTime = rhs.finishTime;
+        return *this;
+    }
+    unsigned sourceFrame;
+    double startTime;
+    double finishTime;
+};
+
+} // namespace blink
+
+#endif