Remove SurfaceFactory::Reset

cc/surfaces/surface_factory.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/surfaces/surface_factory.h"
 
 #include <utility>
 
 #include "base/memory/ptr_util.h"
 #include "base/trace_event/trace_event.h"
@@ skipping 23 matching lines @@
   // could cause a crash or some unexpected behaviour.
   DCHECK(!current_surface_) << "Please call EvictSurface before destruction";
 }
 
 void SurfaceFactory::EvictSurface() {
   if (!current_surface_)
     return;
   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,
     const DrawCallback& callback) {
   TRACE_EVENT0("cc", "SurfaceFactory::SubmitCompositorFrame");
   DCHECK(local_surface_id.is_valid());
   std::unique_ptr<Surface> surface;
   bool create_new_surface =
       (!current_surface_ ||
        local_surface_id != current_surface_->surface_id().local_surface_id());
@@ skipping 94 matching lines @@
   surface->AddObserver(this);
   return surface;
 }
 
 void SurfaceFactory::Destroy(std::unique_ptr<Surface> surface) {
   surface->RemoveObserver(this);
   manager_->DestroySurface(std::move(surface));
 }
 
 }  // namespace cc