Oilpan: trace ColorChooserPopupUIController::m_chromeClient

third_party/WebKit/Source/web/ColorChooserPopupUIController.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 29 matching lines @@
 // Keep in sync with Actions in colorSuggestionPicker.js.
 enum ColorPickerPopupAction {
     ColorPickerPopupActionChooseOtherColor = -2,
     ColorPickerPopupActionCancel = -1,
     ColorPickerPopupActionSetValue = 0
 };
 
 ColorChooserPopupUIController::ColorChooserPopupUIController(LocalFrame* frame, ChromeClientImpl* chromeClient, ColorChooserClient* client)
     : ColorChooserUIController(frame, client)
     , m_chromeClient(chromeClient)
-    , m_popup(0)
+    , m_popup(nullptr)
     , m_locale(Locale::defaultLocale())
 {
+#if ENABLE(OILPAN)
+    ThreadState::current()->registerPreFinalizer(this);
+#endif
 }
 
 ColorChooserPopupUIController::~ColorChooserPopupUIController()
 {
+#if !ENABLE(OILPAN)
     closePopup();
+#endif
     // ~ColorChooserUIController ends the ColorChooser.
 }
 
+void ColorChooserPopupUIController::dispose()
+{
+    // Finalized earlier so as to access m_chromeClient while alive.
+    closePopup();
+}
+
+DEFINE_TRACE(ColorChooserPopupUIController)
+{
+    visitor->trace(m_chromeClient);
+    ColorChooserUIController::trace(visitor);
+}
+
 void ColorChooserPopupUIController::openUI()
 {
     if (m_client->shouldShowSuggestions())
         openPopup();
     else
         openColorChooser();
 }
 
 void ColorChooserPopupUIController::endChooser()
 {
     if (m_chooser)
         m_chooser->endChooser();
 
     closePopup();
 }
 
 AXObject* ColorChooserPopupUIController::rootAXObject()
 {
-    return m_popup ? m_popup->rootAXObject() : 0;
+    return m_popup ? m_popup->rootAXObject() : nullptr;
 }
 
 void ColorChooserPopupUIController::writeDocument(SharedBuffer* data)
 {
     Vector<ColorSuggestion> suggestions = m_client->suggestions();
     Vector<String> suggestionValues;
     for (unsigned i = 0; i < suggestions.size(); i++)
         suggestionValues.append(suggestions[i].color.serialized());
     IntRect anchorRectInScreen = m_chromeClient->viewportToScreen(m_client->elementRectRelativeToViewport());
 
@@ skipping 31 matching lines @@
 {
     ASSERT(m_client);
     Color color;
     bool success = color.setFromString(value);
     ASSERT_UNUSED(success, success);
     m_client->didChooseColor(color);
 }
 
 void ColorChooserPopupUIController::didClosePopup()
 {
-    m_popup = 0;
+    m_popup = nullptr;
 
     if (!m_chooser)
         didEndChooser();
 }
 
 Element& ColorChooserPopupUIController::ownerElement()
 {
     return m_client->ownerElement();
 }
 
 void ColorChooserPopupUIController::openPopup()
 {
     ASSERT(!m_popup);
     m_popup = m_chromeClient->openPagePopup(this);
 }
 
 void ColorChooserPopupUIController::closePopup()
 {
     if (!m_popup)
         return;
     m_chromeClient->closePagePopup(m_popup);
 }
 
 } // namespace blink