cc: Remove Display::SetExternalViewport.

content/renderer/android/synchronous_compositor_frame_sink.h

Index: content/renderer/android/synchronous_compositor_frame_sink.h
diff --git a/content/renderer/android/synchronous_compositor_frame_sink.h b/content/renderer/android/synchronous_compositor_frame_sink.h
index 74ad9281b8eff116962cdb87ec4fcac59d0f36d9..0ff6562613ca71993ff951de1e8b3cc806988eb5 100644
--- a/content/renderer/android/synchronous_compositor_frame_sink.h
+++ b/content/renderer/android/synchronous_compositor_frame_sink.h
@@ -155,9 +155,11 @@ class SynchronousCompositorFrameSink
   // Uses surface_manager_.
   std::unique_ptr<cc::Display> display_;
   // Owned by |display_|.
-  SoftwareOutputSurface* software_compositor_frame_sink_ = nullptr;
+  SoftwareOutputSurface* software_output_surface_ = nullptr;
   std::unique_ptr<cc::BeginFrameSource> begin_frame_source_;
 
+  gfx::Size sw_display_size_for_current_draw_;
+
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(SynchronousCompositorFrameSink);