Deleted renderer-related SetSize methods, and all uses.

talk/app/webrtc/test/fakevideotrackrenderer.h

Index: talk/app/webrtc/test/fakevideotrackrenderer.h
diff --git a/talk/app/webrtc/test/fakevideotrackrenderer.h b/talk/app/webrtc/test/fakevideotrackrenderer.h
index 38b84a6aff5c129e44a7be8626e7803816b483df..b50ff8d16e247f5cdf29fbd72f5cc65164a410d1 100644
--- a/talk/app/webrtc/test/fakevideotrackrenderer.h
+++ b/talk/app/webrtc/test/fakevideotrackrenderer.h
@@ -45,12 +45,6 @@ class FakeVideoTrackRenderer : public VideoRendererInterface {
 
   virtual void RenderFrame(const cricket::VideoFrame* video_frame) override {
     last_frame_ = const_cast<cricket::VideoFrame*>(video_frame);
-    if (!fake_renderer_.SetSize(static_cast<int>(video_frame->GetWidth()),
-                                static_cast<int>(video_frame->GetHeight()),
-                                0)) {
-      return;
-    }
-
     fake_renderer_.RenderFrame(video_frame);
   }