Revert "Implement FullScreen using top layer."

third_party/WebKit/Source/web/FullscreenController.cpp

Index: third_party/WebKit/Source/web/FullscreenController.cpp
diff --git a/third_party/WebKit/Source/web/FullscreenController.cpp b/third_party/WebKit/Source/web/FullscreenController.cpp
index 6089612df2ac888b8eeeb78312cccbdfbb256429..019c1d2e18be77f7baabaf7b55f91b3117a9926d 100644
--- a/third_party/WebKit/Source/web/FullscreenController.cpp
+++ b/third_party/WebKit/Source/web/FullscreenController.cpp
@@ -137,13 +137,6 @@ void FullscreenController::didExitFullScreen()
 
 void FullscreenController::enterFullScreenForElement(Element* element)
 {
-    // TODO(dsinclair): This should not be needed because we addToTopLayer
-    // in Fullscreen::pushFullscreenElementStack but, the WebView code doesn't
-    // call Fullscreen::requestFullscreen() and, instead, just enters and
-    // exists itself. This should be unified so there is one way to go
-    // fullscreen.  crbug.com/538158
-    element->document().addToTopLayer(element);
-
     // We are already transitioning to fullscreen for a different element.
     if (m_provisionalFullScreenElement) {
         m_provisionalFullScreenElement = element;
@@ -169,13 +162,6 @@ void FullscreenController::exitFullScreenForElement(Element* element)
 {
     ASSERT(element);
 
-    // TODO(dsinclair): This should not be needed because we addToTopLayer
-    // in Fullscreen::popFullscreenElementStack but, the WebView code doesn't
-    // call Fullscreen::requestFullscreen() and, instead, just enters and
-    // exists itself. This should be unified so there is one way to go
-    // fullscreen.  crbug.com/538158
-    element->document().removeFromTopLayer(element);
-
     // The client is exiting full screen, so don't send a notification.
     if (m_isCancelingFullScreen)
         return;
@@ -192,9 +178,9 @@ void FullscreenController::updateSize()
 
     updatePageScaleConstraints(false);
 
-    Document* document = m_fullScreenFrame->document();
-    if (Element* fullscreenElement = Fullscreen::currentFullScreenElementFrom(*document))
-        Fullscreen::from(fullscreenElement->document()).didUpdateSize(*fullscreenElement);
+    LayoutFullScreen* layoutObject = Fullscreen::from(*m_fullScreenFrame->document()).fullScreenLayoutObject();
+    if (layoutObject)
+        layoutObject->updateStyle();
 }
 
 void FullscreenController::updatePageScaleConstraints(bool removeConstraints)