Replace LayoutPart::GetFrameViewBase with GetNodeFrameView

third_party/WebKit/Source/core/paint/PaintPropertyTreePrinter.cpp

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/paint/PaintPropertyTreePrinter.h"
 
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/layout/LayoutPart.h"
 #include "core/layout/LayoutView.h"
@@ skipping 477 matching lines @@
     }
     os << "\"];" << std::endl;
     const void* parent = object.IsLayoutView()
                              ? (const void*)ToLayoutView(object).GetFrameView()
                              : (const void*)object.Parent();
     WriteParentEdge(&object, parent, layout_node_color_, os);
     WriteObjectPaintPropertyNodes(object);
     for (const LayoutObject* child = object.SlowFirstChild(); child;
          child = child->NextSibling())
       WriteLayoutObjectNode(*child);
-    if (object.IsLayoutPart() && ToLayoutPart(object).GetFrameViewBase() &&
-        ToLayoutPart(object).GetFrameViewBase()->IsFrameView()) {
-      FrameView* frame_view =
-          ToFrameView(ToLayoutPart(object).GetFrameViewBase());
-      WriteFrameViewNode(*frame_view, &object);
+    if (object.IsLayoutPart()) {
+      FrameView* frame_view = ToLayoutPart(object).ChildFrameView();
+      if (frame_view)
+        WriteFrameViewNode(*frame_view, &object);
     }
   }
 
   void WriteFrameViewNode(const FrameView& frame_view, const void* parent) {
     std::ostream& os = layout_;
     os << "n" << &frame_view << " [color=" << layout_node_color_
        << ", fontcolor=" << layout_node_color_ << ", shape=doublecircle"
        << ", label=FrameView];" << std::endl;
 
     WriteFrameViewPaintPropertyNodes(frame_view);
@@ skipping 68 matching lines @@
 }
 
 String paintPropertyTreeGraph(const blink::FrameView& frameView) {
   blink::PaintPropertyTreeGraphBuilder builder;
   StringBuilder stringBuilder;
   builder.GenerateTreeGraph(frameView, stringBuilder);
   return stringBuilder.ToString();
 }
 
 #endif  // DCHECK_IS_ON()