Move color chooser objects to the Oilpan heap.

Source/web/ColorChooserPopupUIController.cpp

Index: Source/web/ColorChooserPopupUIController.cpp
diff --git a/Source/web/ColorChooserPopupUIController.cpp b/Source/web/ColorChooserPopupUIController.cpp
index c2bb507f2ccfc29d360dee903b3e70947683dde3..8f4da5db27266085442796a562a054e55a9a4340 100644
--- a/Source/web/ColorChooserPopupUIController.cpp
+++ b/Source/web/ColorChooserPopupUIController.cpp
@@ -55,6 +55,14 @@ ColorChooserPopupUIController::ColorChooserPopupUIController(LocalFrame* frame,
 
 ColorChooserPopupUIController::~ColorChooserPopupUIController()
 {
+    closePopup();
+    // ~ColorChooserUIController ends the ColorChooser.
+}
+
+void ColorChooserPopupUIController::trace(Visitor* visitor)
+{
+    visitor->trace(m_client);
+    ColorChooserUIController::trace(visitor);
 }
 
 void ColorChooserPopupUIController::openUI()
@@ -69,8 +77,8 @@ void ColorChooserPopupUIController::endChooser()
 {
     if (m_chooser)
         m_chooser->endChooser();
-    if (m_popup)
-        closePopup();
+
+    closePopup();
 }
 
 AXObject* ColorChooserPopupUIController::rootAXObject()