Add GetFrameConsumer() in VideoRenderer.

remoting/test/protocol_perftest.cc

Index: remoting/test/protocol_perftest.cc
diff --git a/remoting/test/protocol_perftest.cc b/remoting/test/protocol_perftest.cc
index 0bd0c30ab6094d01e638fc436df14a978294480e..bbafe9455247c34cb7744735ed2c99400706eaad 100644
--- a/remoting/test/protocol_perftest.cc
+++ b/remoting/test/protocol_perftest.cc
@@ -123,6 +123,10 @@ class ProtocolPerfTest
   // VideoRenderer interface.
   void OnSessionConfig(const protocol::SessionConfig& config) override {}
   protocol::VideoStub* GetVideoStub() override { return this; }
+  protocol::FrameConsumer* GetFrameConsumer() override {
+    NOTREACHED();
+    return nullptr;
+  }
 
   // protocol::VideoStub interface.
   void ProcessVideoPacket(scoped_ptr<VideoPacket> video_packet,