Don't trace LayoutObject geometry prior to running layout.

Source/core/layout/TracedLayoutObject.h

 // Copyright 2015 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.
 
 #ifndef TracedLayoutObject_h
 #define TracedLayoutObject_h
 
 #include "platform/EventTracer.h"
 #include "platform/geometry/LayoutRect.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 class JSONObject;
 class LayoutObject;
 class LayoutView;
 
 class TracedLayoutObject : public TraceEvent::ConvertableToTraceFormat {
     WTF_MAKE_NONCOPYABLE(TracedLayoutObject);
 public:
-    static PassRefPtr<TraceEvent::ConvertableToTraceFormat> create(const LayoutView&);
+    static PassRefPtr<TraceEvent::ConvertableToTraceFormat> create(const LayoutView&, bool traceGeometry = true);
 
     String asTraceFormat() const override;
 
 private:
-    explicit TracedLayoutObject(const LayoutObject&);
+    explicit TracedLayoutObject(const LayoutObject&, bool traceGeometry, bool traceGeometry);
 
     PassRefPtr<JSONObject> toJSON() const;
 
     unsigned long m_address;
     bool m_isAnonymous;
     bool m_isPositioned;
     bool m_isRelPositioned;
     bool m_isStickyPositioned;
     bool m_isFloating;
     bool m_selfNeeds;
@@ skipping 10 matching lines @@
     unsigned m_row;
     unsigned m_col;
     unsigned m_rowSpan;
     unsigned m_colSpan;
     Vector<RefPtr<TracedLayoutObject>> m_children;
 };
 
 } // namespace blink
 
 #endif // TracedLayoutObject_h