Navigation transitions (web to native app): Hide/Show transition elements (Blink side)

Source/core/testing/Internals.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 Apple 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
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     void setNetworkStateNotifierTestOnly(bool);
     // Test must call setNetworkStateNotifierTestOnly(true) before calling setNetworkConnectionInfo.
     void setNetworkConnectionInfo(const String&, ExceptionState&);
 
     PassRefPtrWillBeRawPtr<ClientRect> boundsInRootViewSpace(Element*);
     String serializeNavigationMarkup();
     Vector<String> getTransitionElementIds();
     PassRefPtrWillBeRawPtr<ClientRectList> getTransitionElementRects();
     void hideAllTransitionElements();
+    void showAllTransitionElements();
 
     unsigned countHitRegions(CanvasRenderingContext2D*);
 
     void forcePluginPlaceholder(HTMLElement* plugin, PassRefPtrWillBeRawPtr<DocumentFragment>, ExceptionState&);
     void forcePluginPlaceholder(HTMLElement* plugin, const Dictionary& options, ExceptionState&);
 
     Iterator* iterator(ScriptState*, ExceptionState&);
 
 private:
     explicit Internals(Document*);
     Document* contextDocument() const;
     LocalFrame* frame() const;
     Vector<String> iconURLs(Document*, int iconTypesMask) const;
     PassRefPtrWillBeRawPtr<ClientRectList> annotatedRegions(Document*, bool draggable, ExceptionState&);
 
     DocumentMarker* markerAt(Node*, const String& markerType, unsigned index, ExceptionState&);
     Member<InternalRuntimeFlags> m_runtimeFlags;
     Member<InternalProfilers> m_profilers;
 };
 
 } // namespace blink
 
 #endif // Internals_h