Stop deferring commits on body tag insertion if there are no pending stylesheet loads.

Source/web/WebViewImpl.h

 /*
  * Copyright (C) 2010 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 374 matching lines @@
     // not take the user away from the current page.
     void didCommitLoad(bool isNewNavigation, bool isNavigationWithinPage);
 
     // Indicates two things:
     //   1) This view may have a new layout now.
     //   2) Calling layout() is a no-op.
     // After calling WebWidget::layout(), expect to get this notification
     // unless the view did not need a layout.
     void layoutUpdated(WebFrameImpl*);
 
+    void willInsertBody(WebFrameImpl*);
     void didChangeContentsSize();
     void deviceOrPageScaleFactorChanged();
 
     // Returns true if popup menus should be rendered by the browser, false if
     // they should be rendered by WebKit (which is the default).
     static bool useExternalPopupMenus();
 
     bool contextMenuAllowed() const
     {
         return m_contextMenuAllowed;
@@ skipping 121 matching lines @@
     WebCore::IntPoint clampOffsetAtScale(const WebCore::IntPoint& offset, float scale);
 
     // Exposed for tests.
     WebVector<WebCompositionUnderline> compositionUnderlines() const;
 
     WebLayerTreeView* layerTreeView() const { return m_layerTreeView; }
 
 private:
     float legibleScale() const;
     void refreshPageScaleFactorAfterLayout();
+    void resumeTreeViewCommits();
     void setUserAgentPageScaleConstraints(WebCore::PageScaleConstraints newConstraints);
     float clampPageScaleFactorToLimits(float) const;
     WebCore::IntSize contentsSize() const;
 
     void resetSavedScrollAndScaleState();
 
     void updateMainFrameScrollPosition(const WebCore::IntPoint& scrollPosition, bool programmaticScroll);
 
     friend class WebView;  // So WebView::Create can call our constructor
     friend class WTF::RefCounted<WebViewImpl>;
@@ skipping 237 matching lines @@
     Vector<WebHelperPluginImpl*> m_helperPluginsPendingClose;
 };
 
 // We have no ways to check if the specified WebView is an instance of
 // WebViewImpl because WebViewImpl is the only implementation of WebView.
 DEFINE_TYPE_CASTS(WebViewImpl, WebView, webView, true, true);
 
 } // namespace blink
 
 #endif