cast: Support for low-latency interactive mode

content/browser/media/capture/cursor_renderer.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_H_
 #define CONTENT_BROWSER_MEDIA_CAPTURE_CURSOR_RENDERER_H_
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 19 matching lines @@
   // Takes a snapshot of the current cursor state and determines whether
   // the cursor will be rendered, which cursor image to render, and at what
   // location within |region_in_frame| to render it. Returns true if cursor
   // needs to be rendered.
   virtual bool SnapshotCursorState(const gfx::Rect& region_in_frame) = 0;
 
   // Renders cursor on the |target| video frame.
   virtual void RenderOnVideoFrame(
       const scoped_refptr<media::VideoFrame>& target) const = 0;
 
+  // Returns true if UI event was detected.
+  virtual bool ui_event_detected() const = 0;
+
   // Returns a weak pointer.
   virtual base::WeakPtr<CursorRenderer> GetWeakPtr() = 0;
 
  protected:
   enum {
     // Minium movement before cursor is rendered on frame.
     MIN_MOVEMENT_PIXELS = 15,
     // Maximum idle time allowed before we stop rendering the cursor
     // on frame.
     MAX_IDLE_TIME_SECONDS = 2
   };
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_MEDIA_CAPTURE_CURSOR_RENDERER_H_