Remove some pass-thrus on RootWindow API in favor of exposing the RootWindowHost again.

ui/views/widget/desktop_aura/x11_desktop_window_move_client.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/x11_desktop_window_move_client.h"
 
 #include <X11/Xlib.h>
 // Get rid of a macro from Xlib.h that conflicts with Aura's RootWindow class.
 #undef RootWindow
 
@@ skipping 34 matching lines @@
     : move_loop_(this),
       root_window_(NULL) {
 }
 
 X11DesktopWindowMoveClient::~X11DesktopWindowMoveClient() {}
 
 void X11DesktopWindowMoveClient::OnMouseMovement(XMotionEvent* event) {
   gfx::Point cursor_point(event->x_root, event->y_root);
   gfx::Point system_loc = cursor_point - window_offset_;
 
-  gfx::Rect target_rect(system_loc, root_window_->GetHostSize());
+  gfx::Rect target_rect(system_loc, root_window_->host()->GetBounds().size());
 
   window_move_timer_.Start(
       FROM_HERE,
       base::TimeDelta::FromMilliseconds(kMoveDelay),
       base::Bind(&X11DesktopWindowMoveClient::SetHostBounds,
                  base::Unretained(this),
                  target_rect));
 }
 
 void X11DesktopWindowMoveClient::OnMouseReleased() {
@@ skipping 24 matching lines @@
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // DesktopRootWindowHostLinux, private:
 
 void X11DesktopWindowMoveClient::SetHostBounds(const gfx::Rect& rect) {
   root_window_->SetHostBounds(rect);
 }
 
 }  // namespace views