Simplify CompositingReasonFinder::requiresCompositingForPlugin

Source/core/rendering/RenderEmbeddedObject.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Simon Hausmann <hausmann@kde.org>
  *           (C) 2000 Stefan Schimanski (1Stein@gmx.de)
  * Copyright (C) 2004, 2005, 2006, 2008, 2009, 2010 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 53 matching lines @@
 RenderEmbeddedObject::~RenderEmbeddedObject()
 {
 }
 
 LayerType RenderEmbeddedObject::layerTypeRequired() const
 {
     LayerType type = RenderPart::layerTypeRequired();
     if (type != NoLayer)
         return type;
 
-    return allowsAcceleratedCompositing() ? NormalLayer : NoLayer;
-}
-
-bool RenderEmbeddedObject::allowsAcceleratedCompositing() const
-{
-    return widget() && widget()->isPluginView() && toPluginView(widget())->platformLayer();
+    return requiresAcceleratedCompositing() ? NormalLayer : NoLayer;
 }
 
 static String unavailablePluginReplacementText(Node* node, RenderEmbeddedObject::PluginUnavailabilityReason pluginUnavailabilityReason)
 {
     Locale& locale = node ? toElement(node)->locale() : Locale::defaultLocale();
     switch (pluginUnavailabilityReason) {
     case RenderEmbeddedObject::PluginMissing:
         return locale.queryString(blink::WebLocalizedString::MissingPluginText);
     case RenderEmbeddedObject::PluginBlockedByContentSecurityPolicy:
         return locale.queryString(blink::WebLocalizedString::BlockedPluginText);
@@ skipping 155 matching lines @@
 {
     return false;
 }
 
 bool RenderEmbeddedObject::canHaveChildren() const
 {
     return false;
 }
 
 }