cast: Support for low-latency interactive mode

content/browser/media/capture/cursor_renderer_aura.h

 // Copyright (c) 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_MEDIA_CAPTURE_CURSOR_RENDERER_AURA_H_
 #define CONTENT_BROWSER_MEDIA_CAPTURE_CURSOR_RENDERER_AURA_H_
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 23 matching lines @@
 
   // CursorRender implementation.
   void Clear() final;
   bool SnapshotCursorState(const gfx::Rect& region_in_frame) final;
   void RenderOnVideoFrame(
       const scoped_refptr<media::VideoFrame>& target) const final;
   base::WeakPtr<CursorRenderer> GetWeakPtr() final;
 
   // ui::EventHandler overrides.
   void OnMouseEvent(ui::MouseEvent* event) final;
+  void OnEvent(ui::Event* event) final;
 
   // aura::WindowObserver overrides.
   void OnWindowDestroying(aura::Window* window) final;
 
+  bool ui_event_detected() const final;
+
  private:
   friend class CursorRendererAuraTest;
 
   aura::Window* window_;
 
   // Snapshot of cursor, source size, position, and cursor bitmap; as of the
   // last call to SnapshotCursorState.
   ui::Cursor last_cursor_;
   gfx::Size window_size_when_cursor_last_updated_;
   gfx::Point cursor_position_in_frame_;
   SkBitmap scaled_cursor_bitmap_;
 
   // Updated in mouse event listener and used to make a decision on
   // when the cursor is rendered.
   base::TimeDelta last_mouse_movement_timestamp_;
   float last_mouse_position_x_;
   float last_mouse_position_y_;
   bool cursor_displayed_;
 
+  base::TimeTicks last_time_ui_event_detected_;
+
   // Allows tests to replace the clock.
   base::DefaultTickClock default_tick_clock_;
   base::TickClock* tick_clock_;
 
   base::WeakPtrFactory<CursorRendererAura> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CursorRendererAura);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_MEDIA_CAPTURE_CURSOR_RENDERER_AURA_H_