Popup menu is not aligned with the select element if inside a transformed webview.

Source/WebKit/chromium/src/PopupContainer.cpp

Index: Source/WebKit/chromium/src/PopupContainer.cpp
diff --git a/Source/WebKit/chromium/src/PopupContainer.cpp b/Source/WebKit/chromium/src/PopupContainer.cpp
index 901f33c583b60c09b4ac543bd8562c1f4184c5cd..2083940ab4b7704899baf3654cfebcecfbdb7701 100644
--- a/Source/WebKit/chromium/src/PopupContainer.cpp
+++ b/Source/WebKit/chromium/src/PopupContainer.cpp
@@ -387,9 +387,11 @@ void PopupContainer::showInRect(const FloatQuad& controlPosition, const IntSize&
     // ASSERT(popupWindow(popup)->listBox()->selectedIndex() == index);
 
     // Save and convert the controlPosition to main window coords.
-    m_controlPosition = controlPosition;
-    IntPoint delta = v->contentsToWindow(IntPoint());
-    m_controlPosition.move(delta.x(), delta.y());
+    m_controlPosition.setP1(v->contentsToWindow(IntPoint(controlPosition.p1().x(), controlPosition.p1().y())));

[tkent, 2013/06/07 03:16:52]

Would you add a comment about a reason why we need to convert each of points?

+    m_controlPosition.setP2(v->contentsToWindow(IntPoint(controlPosition.p2().x(), controlPosition.p2().y())));
+    m_controlPosition.setP3(v->contentsToWindow(IntPoint(controlPosition.p3().x(), controlPosition.p3().y())));
+    m_controlPosition.setP4(v->contentsToWindow(IntPoint(controlPosition.p4().x(), controlPosition.p4().y())));
+
     m_controlSize = controlSize;
 
     // Position at (0, 0) since the frameRect().location() is relative to the