Remove concept of child Widgets.

sky/engine/core/frame/FrameView.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Dirk Mueller <mueller@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *           (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
@@ skipping 80 matching lines @@
     , m_layoutSizeFixedToFrameSize(true)
     , m_didScrollTimer(this, &FrameView::didScrollTimerFired)
 {
     ASSERT(m_frame);
     init();
 }
 
 PassRefPtr<FrameView> FrameView::create(LocalFrame* frame)
 {
     RefPtr<FrameView> view = adoptRef(new FrameView(frame));
-    view->show();
     return view.release();
 }
 
 PassRefPtr<FrameView> FrameView::create(LocalFrame* frame, const IntSize& initialSize)
 {
     RefPtr<FrameView> view = adoptRef(new FrameView(frame));
     view->Widget::setFrameRect(IntRect(view->location(), initialSize));
     view->setLayoutSizeInternal(initialSize);
-
-    view->show();
     return view.release();
 }
 
 FrameView::~FrameView()
 {
     if (m_postLayoutTasksTimer.isActive())
         m_postLayoutTasksTimer.stop();
 
     if (m_didScrollTimer.isActive())
         m_didScrollTimer.stop();
@@ skipping 1301 matching lines @@
     m_scrollableAreas->add(scrollableArea);
 }
 
 void FrameView::removeScrollableArea(ScrollableArea* scrollableArea)
 {
     if (!m_scrollableAreas)
         return;
     m_scrollableAreas->remove(scrollableArea);
 }
 
-void FrameView::addChild(PassRefPtr<Widget> prpChild)
-{
-    Widget* child = prpChild.get();
-    ASSERT(child != this && !child->parent());
-    child->setParent(this);
-    m_children.add(prpChild);
-}
-
-void FrameView::removeChild(Widget* widget)
-{
-    ASSERT(widget->parent() == this);
-    widget->setParent(0);
-    m_children.remove(widget);
-}
-
 bool FrameView::wheelEvent(const PlatformWheelEvent& wheelEvent)
 {
     // FIXME(sky): Remove
     return false;
 }
 
 bool FrameView::isVerticalDocument() const
 {
     RenderView* renderView = this->renderView();
     if (!renderView)
@@ skipping 12 matching lines @@
 }
 
 void FrameView::setCursor(const Cursor& cursor)
 {
     Page* page = frame().page();
     if (!page || !page->settings().deviceSupportsMouse())
         return;
     page->chrome().setCursor(cursor);
 }
 
-void FrameView::frameRectsChanged()
-{
-    if (layoutSizeFixedToFrameSize())
-        setLayoutSizeInternal(frameRect().size());
-
-    for (const auto& widget : m_children) {
-        widget->frameRectsChanged();
-    }
-}
-
 void FrameView::setLayoutSizeInternal(const IntSize& size)
 {
     if (m_layoutSize == size)
         return;
 
     m_layoutSize = size;
     contentsResized();
 }
 
 } // namespace blink