Implement <select> Popup Menu using PagePopup

Source/core/html/forms/PopupMenuClient.h

Index: Source/core/html/forms/PopupMenuClient.h
diff --git a/Source/core/html/forms/PopupMenuClient.h b/Source/core/html/forms/PopupMenuClient.h
index 2e0d1c33765ee65452883b41a0b82c1055c375ae..00bfbe306e2b90e5f72fb83d6991d94a559ccf5c 100644
--- a/Source/core/html/forms/PopupMenuClient.h
+++ b/Source/core/html/forms/PopupMenuClient.h
@@ -29,6 +29,9 @@
 
 namespace blink {
 
+class Element;
+class RenderStyle;
+
 class PopupMenuClient {
 public:
     virtual ~PopupMenuClient() { }
@@ -51,6 +54,9 @@ public:
     virtual bool itemIsLabel(unsigned listIndex) const = 0;
     virtual bool itemIsSelected(unsigned listIndex) const = 0;
     virtual void setTextFromItem(unsigned listIndex) = 0;
+    virtual IntRect elementRectRelativeToRootView() const = 0;
+    virtual Element& ownerElement() const = 0;
+    virtual RenderStyle* renderStyleForItem(Element&) const = 0;
 
     virtual void listBoxSelectItem(int /*listIndex*/, bool /*allowMultiplySelections*/, bool /*shift*/, bool /*fireOnChangeNow*/ = true) { ASSERT_NOT_REACHED(); }
     virtual bool multiple() const