Add a test that we resume commits after inserting the body.

Source/web/WebViewImpl.cpp

 /*
  * Copyright (C) 2011, 2012 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 57 matching lines @@
 #include "core/input/EventHandler.h"
 #include "core/input/TouchActionUtil.h"
 #include "core/layout/LayoutPart.h"
 #include "core/layout/LayoutView.h"
 #include "core/layout/TextAutosizer.h"
 #include "core/layout/compositing/DeprecatedPaintLayerCompositor.h"
 #include "core/loader/DocumentLoader.h"
 #include "core/loader/FrameLoadRequest.h"
 #include "core/loader/FrameLoader.h"
 #include "core/loader/FrameLoaderClient.h"
+#include "core/loader/FrameLoaderStateMachine.h"
 #include "core/page/ContextMenuController.h"
 #include "core/page/ContextMenuProvider.h"
 #include "core/page/DragController.h"
 #include "core/page/DragData.h"
 #include "core/page/DragSession.h"
 #include "core/page/FocusController.h"
 #include "core/page/FrameTree.h"
 #include "core/page/Page.h"
 #include "core/page/PagePopupClient.h"
 #include "core/page/PointerLockController.h"
@@ skipping 3815 matching lines @@
         return;
 
     // If we have no more stylesheets to load and we're past the body tag,
     // we should have something to paint and should start as soon as possible.
     if (m_page->deprecatedLocalMainFrame()->document()->body())
         resumeTreeViewCommits();
 }
 
 void WebViewImpl::resumeTreeViewCommits()
 {
+    if (!mainFrameImpl()->frame()->loader().stateMachine()->committedFirstRealDocumentLoad())
+        return;
     if (m_layerTreeView)
         m_layerTreeView->setDeferCommits(false);
 }
 
 void WebViewImpl::postLayoutResize(WebLocalFrameImpl* webframe)
 {
     FrameView* view = webframe->frame()->view();
     if (webframe == mainFrame())
         view->resize(mainFrameSize());
     else
@@ skipping 508 matching lines @@
     if (m_pageColorOverlay)
         m_pageColorOverlay->update();
     if (m_inspectorOverlay) {
         PageOverlay* inspectorPageOverlay = m_inspectorOverlay->pageOverlay();
         if (inspectorPageOverlay)
             inspectorPageOverlay->update();
     }
 }
 
 } // namespace blink