Media Remoting: Add interstitial elements to media element shadow dom.

third_party/WebKit/Source/core/layout/LayoutMedia.cpp

 /*
  * Copyright (C) 2007, 2008, 2009, 2010 Apple 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:
  * 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
@@ skipping 41 matching lines @@
   LayoutRect new_rect = ContentBoxRect();
 
   LayoutState state(*this);
 
 // Iterate the children in reverse order so that the media controls are laid
 // out before the text track container. This is to ensure that the text
 // track rendering has an up-to-date position of the media controls for
 // overlap checking, see LayoutVTTCue.
 #if DCHECK_IS_ON()
   bool seen_text_track_container = false;
+  bool seen_media_remoting_interstitial = false;
 #endif
   for (LayoutObject* child = children_.LastChild(); child;
        child = child->PreviousSibling()) {
 #if DCHECK_IS_ON()
-    if (child->GetNode()->IsMediaControls())
+    if (child->GetNode()->IsMediaControls()) {
       DCHECK(!seen_text_track_container);
-    else if (child->GetNode()->IsTextTrackContainer())
+      DCHECK(!seen_media_remoting_interstitial);
+    } else if (child->GetNode()->IsTextTrackContainer()) {
       seen_text_track_container = true;
-    else
+      DCHECK(!seen_media_remoting_interstitial);
+    } else if (child->GetNode()->IsMediaRemotingInterstitial()) {
+      seen_media_remoting_interstitial = true;
+    } else {
       NOTREACHED();
+    }
 #endif
 
     // TODO(mlamouri): we miss some layouts because needsLayout returns false in
     // some cases where we want to change the width of the controls because the
     // visible viewport has changed for example.
     if (new_rect.Size() == old_size && !child->NeedsLayout())
       continue;
 
     LayoutUnit width = new_rect.Width();
     if (child->GetNode()->IsMediaControls()) {
@@ skipping 26 matching lines @@
 
   // The user agent stylesheet (mediaControls.css) has
   // ::-webkit-media-controls { display: flex; }. If author style
   // sets display: inline we would get an inline layoutObject as a child
   // of replaced content, which is not supposed to be possible. This
   // check can be removed if ::-webkit-media-controls is made
   // internal.
   if (child->GetNode()->IsMediaControls())
     return child->IsFlexibleBox();
 
-  if (child->GetNode()->IsTextTrackContainer())
+  if (child->GetNode()->IsTextTrackContainer() ||
+      child->GetNode()->IsMediaRemotingInterstitial())
     return true;
 
   return false;
 }
 
 void LayoutMedia::PaintReplaced(const PaintInfo&, const LayoutPoint&) const {}
 
 LayoutUnit LayoutMedia::ComputePanelWidth(const LayoutRect& media_rect) const {
   // TODO(mlamouri): we don't know if the main frame has an horizontal scrollbar
   // if it is out of process. See https://crbug.com/662480
@@ skipping 24 matching lines @@
           .X());
   const LayoutUnit new_width = visible_width - absolute_x_offset;
 
   if (new_width < 0)
     return media_rect.Width();
 
   return std::min(media_rect.Width(), visible_width - absolute_x_offset);
 }
 
 }  // namespace blink