[WIP] Migrate Fullscreen to use top layer instead of RenderFullScreen

Source/core/rendering/RenderInline.cpp

Index: Source/core/rendering/RenderInline.cpp
diff --git a/Source/core/rendering/RenderInline.cpp b/Source/core/rendering/RenderInline.cpp
index 3752c456562061611b8f5130e3f91fe5cde61bd7..a7615b4fe9ab67e5529a9c8cdfd78e603ed30916 100644
--- a/Source/core/rendering/RenderInline.cpp
+++ b/Source/core/rendering/RenderInline.cpp
@@ -37,7 +37,6 @@
 #include "core/rendering/RenderArena.h"
 #include "core/rendering/RenderBlock.h"
 #include "core/rendering/RenderFlowThread.h"
-#include "core/rendering/RenderFullScreen.h"
 #include "core/rendering/RenderGeometryMap.h"
 #include "core/rendering/RenderLayer.h"
 #include "core/rendering/RenderTheme.h"
@@ -347,17 +346,6 @@ void RenderInline::splitInlines(RenderBlock* fromBlock, RenderBlock* toBlock,
     RenderInline* cloneInline = clone();
     cloneInline->setContinuation(oldCont);
 
-    // If we're splitting the inline containing the fullscreened element,
-    // |beforeChild| may be the renderer for the fullscreened element. However,
-    // that renderer is wrapped in a RenderFullScreen, so |this| is not its
-    // parent. Since the splitting logic expects |this| to be the parent, set
-    // |beforeChild| to be the RenderFullScreen.
-    if (FullscreenController* fullscreen = FullscreenController::fromIfExists(document())) {
-        const Element* fullScreenElement = fullscreen->webkitCurrentFullScreenElement();
-        if (fullScreenElement && beforeChild && beforeChild->node() == fullScreenElement)
-            beforeChild = fullscreen->fullScreenRenderer();
-    }
-
     // Now take all of the children from beforeChild to the end and remove
     // them from |this| and place them in the clone.
     RenderObject* o = beforeChild;