Remove unnecessary uses of aura::Env::GetDispatcher

ui/views/widget/desktop_aura/x11_whole_screen_move_loop.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_whole_screen_move_loop.h"
 
 #include <X11/Xlib.h>
 // Get rid of a macro from Xlib.h that conflicts with Aura's RootWindow class.
 #undef RootWindow
 
@@ skipping 104 matching lines @@
   // must manually make aura think that the mouse button is pressed so that we
   // don't draw extraneous tooltips.
   aura::Env* env = aura::Env::GetInstance();
   if (!env->IsMouseButtonDown()) {
     env->set_mouse_button_flags(ui::EF_LEFT_MOUSE_BUTTON);
     should_reset_mouse_flags_ = true;
   }
 
   base::MessageLoopForUI* loop = base::MessageLoopForUI::current();
   base::MessageLoop::ScopedNestableTaskAllower allow_nested(loop);
-  base::RunLoop run_loop(aura::Env::GetInstance()->GetDispatcher());
+  base::RunLoop run_loop;
   quit_closure_ = run_loop.QuitClosure();
   run_loop.Run();
   return true;
 }
 
 void X11WholeScreenMoveLoop::UpdateCursor(gfx::NativeCursor cursor) {
   DCHECK(in_move_loop_);
   GrabPointerWithCursor(cursor);
 }
 
@@ skipping 100 matching lines @@
   image->SetBounds(0, 0, drag_image_.width(), drag_image_.height());
   widget->SetContentsView(image);
 
   widget->Show();
   widget->GetNativeWindow()->layer()->SetFillsBoundsOpaquely(false);
 
   drag_widget_.reset(widget);
 }
 
 }  // namespace views