Remove Widget::OnRootViewLayout().

ui/views/widget/desktop_aura/desktop_window_tree_host_x11.cc

 // Copyright (c) 2012 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 "ui/views/widget/desktop_aura/desktop_window_tree_host_x11.h"
 
 #include <X11/extensions/shape.h>
 #include <X11/extensions/XInput2.h>
 #include <X11/Xatom.h>
 #include <X11/Xregion.h>
@@ skipping 1130 matching lines @@
   if (flash_frame)
     hints->flags |= XUrgencyHint;
   else
     hints->flags &= ~XUrgencyHint;
 
   XSetWMHints(xdisplay_, xwindow_, hints.get());
 
   urgency_hint_set_ = flash_frame;
 }
 
-void DesktopWindowTreeHostX11::OnRootViewLayout() {
-  UpdateMinAndMaxSize();
-}
-
 bool DesktopWindowTreeHostX11::IsAnimatingClosed() const {
   return false;
 }
 
 bool DesktopWindowTreeHostX11::IsTranslucentWindowOpacitySupported() const {
   return use_argb_visual_;
 }
 
 void DesktopWindowTreeHostX11::SizeConstraintsChanged() {
   UpdateMinAndMaxSize();
@@ skipping 1177 matching lines @@
   if (linux_ui) {
     ui::NativeTheme* native_theme = linux_ui->GetNativeTheme(window);
     if (native_theme)
       return native_theme;
   }
 
   return ui::NativeThemeAura::instance();
 }
 
 }  // namespace views