Merge 97088 - Exiting fullscreen shouldn't crash if the element that was fullscreened had associa...

Source/WebCore/rendering/RenderFullScreen.cpp

Index: Source/WebCore/rendering/RenderFullScreen.cpp
===================================================================
--- Source/WebCore/rendering/RenderFullScreen.cpp	(revision 97091)
+++ Source/WebCore/rendering/RenderFullScreen.cpp	(working copy)
@@ -124,13 +124,16 @@
 
 void RenderFullScreen::unwrapRenderer()
 {
-    RenderObject* wrappedRenderer = firstChild();
-    if (wrappedRenderer) {
-        wrappedRenderer->remove();
-        RenderObject* holder = placeholder() ? placeholder() : this;
-        RenderObject* parent = holder->parent();
-        if (parent)
-            parent->addChild(wrappedRenderer, holder);
+    RenderObject* holder = placeholder() ? placeholder() : this;
+    RenderObject* parent = holder->parent();
+    if (parent) {
+        RenderObject* child = firstChild();
+        while (child) {
+            RenderObject* nextChild = child->nextSibling();
+            child->remove();
+            parent->addChild(child, holder);
+            child = nextChild;
+        }
     }
     remove();
     document()->setFullScreenRenderer(0);