Don't use absolute bounding boxes in LayoutVTTCue

third_party/WebKit/Source/core/layout/LayoutVTTCue.h

 /*
  * Copyright (C) 2012 Victor Carbune (victor@rosedu.org)
  *
  * 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
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef LayoutVTTCue_h
 #define LayoutVTTCue_h
 
 #include "core/layout/LayoutBlockFlow.h"
-#include "platform/heap/Handle.h"
 
 namespace blink {
 
-class VTTCueBox;
+class IntRect;
 
 class LayoutVTTCue final : public LayoutBlockFlow {
 public:
     LayoutVTTCue(ContainerNode*, float snapToLinesPosition);
 
     // The computed line position for snap-to-lines layout, and NaN for
     // non-snap-to-lines layout where no adjustment should take place.
     float snapToLinesPosition() { return m_snapToLinesPosition; }
 
 private:
     void layout() override;
 
+    IntRect computeControlsRect() const;
     void repositionCueSnapToLinesNotSet();
 
     float m_snapToLinesPosition;
 };
 
 } // namespace blink
 
 #endif // LayoutVTTCue_h