chrome/blink: Add functionality for in-product help for media elements.

third_party/WebKit/Source/core/frame/LocalFrame.h

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999-2001 Lars Knoll <knoll@kde.org>
  *                     1999-2001 Antti Koivisto <koivisto@kde.org>
  *                     2000-2001 Simon Hausmann <hausmann@kde.org>
  *                     2000-2001 Dirk Mueller <mueller@kde.org>
  *                     2000 Stefan Schimanski <1Stein@gmx.de>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights
  * reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
@@ skipping 45 matching lines @@
 template <typename Strategy>
 class EphemeralRangeTemplate;
 class EventHandler;
 class FetchParameters;
 class FloatSize;
 class FrameConsole;
 class FrameResourceCoordinator;
 class FrameSelection;
 class InputMethodController;
 class CoreProbeSink;
+class HTMLMediaElement;
 class InterfaceProvider;
 class InterfaceRegistry;
 class IntPoint;
 class IntSize;
 class LayoutView;
 class LayoutViewItem;
 class LocalDOMWindow;
 class LocalWindowProxy;
 class LocalFrameClient;
 class NavigationScheduler;
@@ skipping 46 matching lines @@
   bool ShouldClose() override;
   SecurityContext* GetSecurityContext() const override;
   void PrintNavigationErrorMessage(const Frame&, const char* reason) override;
   void PrintNavigationWarning(const String&) override;
   bool PrepareForCommit() override;
   void DidChangeVisibilityState() override;
 
   void DetachChildren();
   void DocumentAttached();
 
+  void ShowDownloadMediaInProductHelp(HTMLMediaElement&);
+  bool IsDownloadMediaInProductHelpVisibleForElement(HTMLMediaElement&);
+  void LayoutUpdated();
+  void NotifyInProductHelpDismissed();
+
   Frame* FindFrameForNavigation(const AtomicString& name,
                                 LocalFrame& active_frame);
 
   // Note: these two functions are not virtual but intentionally shadow the
   // corresponding method in the Frame base class to return the
   // LocalFrame-specific subclass.
   LocalWindowProxy* WindowProxy(DOMWrapperWorld&);
   LocalDOMWindow* DomWindow() const;
   void SetDOMWindow(LocalDOMWindow*);
   LocalFrameView* View() const override;
@@ skipping 178 matching lines @@
   bool in_view_source_mode_;
 
   Member<CoreProbeSink> probe_sink_;
   Member<PerformanceMonitor> performance_monitor_;
 
   InterfaceProvider* const interface_provider_;
   InterfaceRegistry* const interface_registry_;
 
   IntRect remote_viewport_intersection_;
   Member<FrameResourceCoordinator> frame_resource_coordinator_;
+
+  // Restricts showing the download media in-product help to once per frame.
+  bool media_in_product_help_shown_for_frame_ = false;
+  WeakMember<HTMLMediaElement> element_with_active_in_product_help_;
 };
 
 inline FrameLoader& LocalFrame::Loader() const {
   return loader_;
 }
 
 inline NavigationScheduler& LocalFrame::GetNavigationScheduler() const {
   DCHECK(navigation_scheduler_);
   return *navigation_scheduler_.Get();
 }
@@ skipping 81 matching lines @@
   explicit ScopedFrameBlamer(LocalFrame*);
   ~ScopedFrameBlamer();
 
  private:
   Member<LocalFrame> frame_;
 };
 
 }  // namespace blink
 
 #endif  // LocalFrame_h