Delete unused methods SetStartImage and SetTimeoutImage.

webrtc/modules/video_render/video_render.h

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 232 matching lines @@
                               const float left, const float top,
                               const float right, const float bottom) = 0;
 
     virtual int32_t SetText(const uint8_t textId,
                             const uint8_t* text,
                             const int32_t textLength,
                             const uint32_t textColorRef,
                             const uint32_t backgroundColorRef,
                             const float left, const float top,
                             const float right, const float bottom) = 0;
-
-    /*
-     * Set a start image. The image is rendered before the first image has been delivered
-     */
-    virtual int32_t SetStartImage(const uint32_t streamId,
-                                  const VideoFrame& videoFrame) = 0;
-
-    /*
-     * Set a timout image. The image is rendered if no videoframe has been delivered
-     */
-    virtual int32_t SetTimeoutImage(const uint32_t streamId,
-                                    const VideoFrame& videoFrame,
-                                    const uint32_t timeout) = 0;
 };
 }  // namespace webrtc
 #endif  // WEBRTC_MODULES_VIDEO_RENDER_VIDEO_RENDER_H_