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

third_party/WebKit/Source/modules/media_controls/MediaControlsImpl.h

 /*
  * Copyright (C) 2011, 2012 Apple Inc. All rights reserved.
  * 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 38 matching lines @@
 class MediaControlOverlayEnclosureElement;
 class MediaControlOverlayPlayButtonElement;
 class MediaControlPanelElement;
 class MediaControlPanelEnclosureElement;
 class MediaControlPlayButtonElement;
 class MediaControlRemainingTimeDisplayElement;
 class MediaControlTextTrackListElement;
 class MediaControlTimelineElement;
 class MediaControlToggleClosedCaptionsButtonElement;
 class MediaControlVolumeSliderElement;
+class MediaDownloadInProductHelpManager;
 class ShadowRoot;
 
 // Default implementation of the core/ MediaControls interface used by
 // HTMLMediaElement.
 class MODULES_EXPORT MediaControlsImpl final : public HTMLDivElement,
                                                public MediaControls {
   USING_GARBAGE_COLLECTED_MIXIN(MediaControlsImpl);
   WTF_MAKE_NONCOPYABLE(MediaControlsImpl);
 
  public:
@@ skipping 40 matching lines @@
   void ToggleOverflowMenu();
   bool OverflowMenuVisible();
 
   void ShowOverlayCastButtonIfNeeded();
 
   // Methods call by the scrubber.
   void BeginScrubbing();
   void EndScrubbing();
   void UpdateCurrentTimeDisplay();
 
+  // Methods used for Download In-product help.
+  const MediaControlDownloadButtonElement& DownloadButton() const;
+  void DidDismissDownloadInProductHelp();
+  MediaDownloadInProductHelpManager* DownloadInProductHelp();
+
   DECLARE_VIRTUAL_TRACE();
 
  private:
   // MediaControlsMediaEventListener is a component that is listening to events
   // and calling the appropriate callback on MediaControlsImpl. The object is
   // split from MedaiControlsImpl to reduce boilerplate and ease reading. In
   // order to not expose accessors only for this component, a friendship is
   // declared.
   friend class MediaControlsMediaEventListener;
   // Same as above but handles the menus hiding when the window is interacted
   // with, allowing MediaControlsImpl to not have the boilerplate.
   friend class MediaControlsWindowEventListener;
 
   // For tests.
   friend class MediaControlsOrientationLockDelegateTest;
   friend class MediaControlsOrientationLockAndRotateToFullscreenDelegateTest;
   friend class MediaControlsRotateToFullscreenDelegateTest;
   friend class MediaControlsImplTest;
+  friend class MediaControlsImplInProductHelpTest;
 
   // Need to be members of MediaControls for private member access.
   class BatchedControlUpdate;
   class MediaControlsResizeObserverDelegate;
   class MediaElementMutationCallback;
 
   void Invalidate(Element*);
 
   // Notify us that our controls enclosure has changed size.
   void NotifyElementSizeChanged(DOMRectReadOnly* new_size);
@@ skipping 11 matching lines @@
   enum HideBehaviorFlags {
     kIgnoreNone = 0,
     kIgnoreVideoHover = 1 << 0,
     kIgnoreFocus = 1 << 1,
     kIgnoreControlsHover = 1 << 2,
     kIgnoreWaitForTimer = 1 << 3,
   };
 
   bool ShouldHideMediaControls(unsigned behavior_flags = 0) const;
   void HideMediaControlsTimerFired(TimerBase*);
+  void StartHideMediaControlsIfNecessary();
   void StartHideMediaControlsTimer();
   void StopHideMediaControlsTimer();
   void ResetHideMediaControlsTimer();
 
   void ElementSizeChangedTimerFired(TimerBase*);
 
   void HideAllMenus();
 
   // Hide elements that don't fit, and show those things that we want which
   // do fit.  This requires that m_effectiveWidth and m_effectiveHeight are
@@ skipping 66 matching lines @@
   Member<ResizeObserver> resize_observer_;
 
   // Watches the media element for attribute changes and updates media controls
   // as necessary.
   Member<MediaElementMutationCallback> element_mutation_callback_;
 
   TaskRunnerTimer<MediaControlsImpl> element_size_changed_timer_;
   IntSize size_;
 
   bool keep_showing_until_timer_fires_ : 1;
+
+  Member<MediaDownloadInProductHelpManager> download_iph_manager_;
 };
 
 DEFINE_ELEMENT_TYPE_CASTS(MediaControlsImpl, IsMediaControls());
 
 }  // namespace blink
 
 #endif