Add pixel readback to page popup

Source/web/WebViewImpl.h

Index: Source/web/WebViewImpl.h
diff --git a/Source/web/WebViewImpl.h b/Source/web/WebViewImpl.h
index 6bed8b9669937015af72b398924f1ef8d0a064c8..828052e7a3f7055fded3526a26388d4045b4b760 100644
--- a/Source/web/WebViewImpl.h
+++ b/Source/web/WebViewImpl.h
@@ -88,6 +88,7 @@ public:
     // WebWidget methods:
     virtual void close() OVERRIDE;
     virtual WebSize size() OVERRIDE;
+    virtual WebPoint screenPosition() OVERRIDE;
     virtual void willStartLiveResize() OVERRIDE;
     virtual void resize(const WebSize&) OVERRIDE;
     virtual void resizePinchViewport(const WebSize&) OVERRIDE;
@@ -123,6 +124,7 @@ public:
     virtual bool compositionRange(size_t* location, size_t* length) OVERRIDE;
     virtual WebTextInputInfo textInputInfo() OVERRIDE;
     virtual WebColor backgroundColor() const OVERRIDE;
+    virtual WebPagePopup* popup() const OVERRIDE;
     virtual bool selectionBounds(WebRect& anchor, WebRect& focus) const OVERRIDE;
     virtual void didShowCandidateWindow() OVERRIDE;
     virtual void didUpdateCandidateWindow() OVERRIDE;