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 12 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef MediaControlsImpl_h
 #define MediaControlsImpl_h
 
 #include "core/html/HTMLDivElement.h"
 #include "core/html/media/MediaControls.h"
 #include "modules/ModulesExport.h"
+#include "public/platform/media_in_product_help.mojom-blink.h"
 
 namespace blink {
 
 class Event;
 class MediaControlsMediaEventListener;
 class MediaControlsOrientationLockDelegate;
 class MediaControlsRotateToFullscreenDelegate;
 class MediaControlsWindowEventListener;
 class MediaControlCastButtonElement;
 class MediaControlCurrentTimeDisplayElement;
@@ skipping 70 matching lines @@
   void ToggleOverflowMenu();
   bool OverflowMenuVisible();
 
   void ShowOverlayCastButtonIfNeeded();
 
   // Methods call by the scrubber.
   void BeginScrubbing();
   void EndScrubbing();
   void UpdateCurrentTimeDisplay();
 
+  void MaybeDispatchDownloadIPHTrigger();
+
   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
@@ skipping 72 matching lines @@
   void OnPause();
   void OnTextTracksAddedOrRemoved();
   void OnTextTracksChanged();
   void OnError();
   void OnLoadedMetadata();
   void OnEnteredFullscreen();
   void OnExitedFullscreen();
   void OnPanelKeypress();
   void OnMediaKeyboardEvent(Event* event) { DefaultEventHandler(event); }
 
+  void UpdateDownloadInProductHelpState();
+  void DismissDownloadInProductHelp();
+
   // Media control elements.
   Member<MediaControlOverlayEnclosureElement> overlay_enclosure_;
   Member<MediaControlOverlayPlayButtonElement> overlay_play_button_;
   Member<MediaControlCastButtonElement> overlay_cast_button_;
   Member<MediaControlPanelEnclosureElement> enclosure_;
   Member<MediaControlPanelElement> panel_;
   Member<MediaControlPlayButtonElement> play_button_;
   Member<MediaControlTimelineElement> timeline_;
   Member<MediaControlCurrentTimeDisplayElement> current_time_display_;
   Member<MediaControlRemainingTimeDisplayElement> duration_display_;
@@ skipping 25 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;
+
+  std::unique_ptr<mojom::blink::MediaInProductHelpPtr> media_in_product_help_;
+  bool media_download_in_product_trigger_observed_ = false;
 };
 
 DEFINE_ELEMENT_TYPE_CASTS(MediaControlsImpl, IsMediaControls());
 
 }  // namespace blink
 
 #endif