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

Source/core/timing/PerformanceCompositeTiming.idl

Index: Source/core/timing/PerformanceCompositeTiming.idl
diff --git a/public/platform/WebImageGenerator.h b/Source/core/timing/PerformanceCompositeTiming.idl
similarity index 85%
copy from public/platform/WebImageGenerator.h
copy to Source/core/timing/PerformanceCompositeTiming.idl
index bb17f4d6df96a2dcc73efa069d2c6646a2338ab9..bf98922244984f3c494ffd21d09fc0ac267d96dd 100644
--- a/public/platform/WebImageGenerator.h
+++ b/Source/core/timing/PerformanceCompositeTiming.idl
@@ -28,21 +28,9 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef WebImageGenerator_h
-#define WebImageGenerator_h
-
-#include "WebCommon.h"
-
-class SkData;
-class SkImageGenerator;
-
-namespace blink {
-
-class BLINK_EXPORT WebImageGenerator {
-public:
-    static SkImageGenerator* create(SkData*);
+// See: http://w3c.github.io/frame-timing/
+[
+    RuntimeEnabled=FrameTimingSupport  // Experimental flag
+] interface PerformanceCompositeTiming : PerformanceEntry {
+    readonly attribute unsigned long sourceFrame;
 };
-
-} // namespace blink
-
-#endif