Remove SurfaceFactory::Reset

cc/surfaces/surface_factory.cc

Index: cc/surfaces/surface_factory.cc
diff --git a/cc/surfaces/surface_factory.cc b/cc/surfaces/surface_factory.cc
index c475793ed6fb9ed32be15b09856bf3c972f20e3c..880cb8c828a675fe85cd426bfb9caa05355e6cbc 100644
--- a/cc/surfaces/surface_factory.cc
+++ b/cc/surfaces/surface_factory.cc
@@ -41,14 +41,6 @@ void SurfaceFactory::EvictSurface() {
   Destroy(std::move(current_surface_));
 }
 
-void SurfaceFactory::Reset() {
-  EvictSurface();
-  // Disown Surfaces that are still alive so that they don't try to unref
-  // resources that we're not tracking any more.
-  weak_factory_.InvalidateWeakPtrs();
-  holder_.Reset();
-}
-
 void SurfaceFactory::SubmitCompositorFrame(
     const LocalSurfaceId& local_surface_id,
     CompositorFrame frame,