New flag is_screencast in VideoOptions.

webrtc/media/engine/webrtcvideoengine2.h

Index: webrtc/media/engine/webrtcvideoengine2.h
diff --git a/webrtc/media/engine/webrtcvideoengine2.h b/webrtc/media/engine/webrtcvideoengine2.h
index 91a92bff5fc5a16ecbd8e92aa6d5addbeddb6bed..da4073a919b7d93a50d04fee109c83335eb9303c 100644
--- a/webrtc/media/engine/webrtcvideoengine2.h
+++ b/webrtc/media/engine/webrtcvideoengine2.h
@@ -299,10 +299,9 @@ class WebRtcVideoChannel2 : public VideoMediaChannel,
       // the first frame to know that you gave a bad codec parameter could make
       // debugging hard).
       // TODO(pbos): Consider setting up encoders lazily.
-      Dimensions() : width(176), height(144), is_screencast(false) {}
+      Dimensions() : width(176), height(144) {}
       int width;
       int height;
-      bool is_screencast;
     };
 
     union VideoEncoderSettings {
@@ -322,23 +321,20 @@ class WebRtcVideoChannel2 : public VideoMediaChannel,
         int max_bitrate_bps,
         size_t num_streams);
 
-    void* ConfigureVideoEncoderSettings(const VideoCodec& codec,
-                                        const VideoOptions& options,
-                                        bool is_screencast)
+    void* ConfigureVideoEncoderSettings(const VideoCodec& codec)
         EXCLUSIVE_LOCKS_REQUIRED(lock_);
 
     AllocatedEncoder CreateVideoEncoder(const VideoCodec& codec)
         EXCLUSIVE_LOCKS_REQUIRED(lock_);
     void DestroyVideoEncoder(AllocatedEncoder* encoder)
         EXCLUSIVE_LOCKS_REQUIRED(lock_);
-    void SetCodecAndOptions(const VideoCodecSettings& codec,
-                            const VideoOptions& options)
+    void SetCodecAndOptions(const VideoCodecSettings& codec)
         EXCLUSIVE_LOCKS_REQUIRED(lock_);
     void RecreateWebRtcStream() EXCLUSIVE_LOCKS_REQUIRED(lock_);
     webrtc::VideoEncoderConfig CreateVideoEncoderConfig(
         const Dimensions& dimensions,
         const VideoCodec& codec) const EXCLUSIVE_LOCKS_REQUIRED(lock_);
-    void SetDimensions(int width, int height, bool is_screencast)
+    void SetDimensions(int width, int height)
         EXCLUSIVE_LOCKS_REQUIRED(lock_);
 
     const std::vector<uint32_t> ssrcs_;