Remove FrameViewBase as base class of RemoteFrameView.

third_party/WebKit/Source/modules/plugins/PluginOcclusionSupport.cpp

 /*
  * Copyright (C) 2011 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 136 matching lines @@
     element = element->ParentOrShadowHostElement();
   return element;
 }
 
 // Return a set of rectangles that should not be overdrawn by the
 // plugin ("cutouts"). This helps implement the "iframe shim"
 // technique of overlaying a windowed plugin with content from the
 // page. In a nutshell, iframe elements should occlude plugins when
 // they occur higher in the stacking order.
 void GetPluginOcclusions(Element* element,
-                         FrameViewBase* parent,
+                         FrameView* parent,
                          const IntRect& frame_rect,
                          Vector<IntRect>& occlusions) {
   LayoutObject* plugin_node = element->GetLayoutObject();
   ASSERT(plugin_node);
   if (!plugin_node->Style())
     return;
   Vector<const LayoutObject*> plugin_zstack;
   Vector<const LayoutObject*> iframe_zstack;
   GetObjectStack(plugin_node, &plugin_zstack);
 
-  if (!parent->IsFrameView())
-    return;
-
-  FrameView* parent_frame_view = ToFrameView(parent);
-
   // Occlusions by iframes.
-  const FrameView::ChildrenSet* children = parent_frame_view->Children();
-  for (FrameView::ChildrenSet::const_iterator it = children->begin();
-       it != children->end(); ++it) {
-    // We only care about FrameView's because iframes show up as FrameViews.
-    if (!(*it)->IsFrameView())
+  for (const auto& child : parent->Children()) {
+    if (!child->IsFrameView())
       continue;
 
-    const FrameView* frame_view = ToFrameView(it->Get());
+    const FrameView* frame_view = ToFrameView(child);
     // Check to make sure we can get both the element and the LayoutObject
     // for this FrameView, if we can't just move on to the next object.
     // FIXME: Plugin occlusion by remote frames is probably broken.
     HTMLElement* element = frame_view->GetFrame().DeprecatedLocalOwner();
     if (!element || !element->GetLayoutObject())
       continue;
 
     LayoutObject* iframe_renderer = element->GetLayoutObject();
 
     if (isHTMLIFrameElement(*element) &&
         IntersectsRect(iframe_renderer, frame_rect)) {
       GetObjectStack(iframe_renderer, &iframe_zstack);
       if (IframeIsAbovePlugin(iframe_zstack, plugin_zstack))
         AddToOcclusions(ToLayoutBox(iframe_renderer), occlusions);
     }
   }
 
   // Occlusions by top layer elements.
   // FIXME: There's no handling yet for the interaction between top layer and
   // iframes. For example, a plugin in the top layer will be occluded by an
   // iframe. And a plugin inside an iframe in the top layer won't be respected
   // as being in the top layer.
   const Element* ancestor = TopLayerAncestor(element);
-  Document* document = parent_frame_view->GetFrame().GetDocument();
+  Document* document = parent->GetFrame().GetDocument();
   const HeapVector<Member<Element>>& elements = document->TopLayerElements();
   size_t start = ancestor ? elements.Find(ancestor) + 1 : 0;
   for (size_t i = start; i < elements.size(); ++i)
     AddTreeToOcclusions(elements[i]->GetLayoutObject(), frame_rect, occlusions);
 }
 
 }  // namespace blink