Remove unnecessary uses of aura::Env::GetDispatcher

ui/base/x/selection_requestor.cc

 // Copyright (c) 2013 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/base/x/selection_requestor.h"
 
 #include "base/message_loop/message_pump_x11.h"
 #include "base/run_loop.h"
 #include "ui/base/x/selection_utils.h"
 #include "ui/base/x/x11_util.h"
@@ skipping 35 matching lines @@
                     selection_name_,
                     target,
                     property_to_set,
                     x_window_,
                     CurrentTime);
 
   // Now that we've thrown our message off to the X11 server, we block waiting
   // for a response.
   base::MessageLoopForUI* loop = base::MessageLoopForUI::current();
   base::MessageLoop::ScopedNestableTaskAllower allow_nested(loop);
-  base::RunLoop run_loop(base::MessagePumpX11::Current());
+  base::RunLoop run_loop;
 
   PendingRequest pending_request(target, run_loop.QuitClosure());
   pending_requests_.push_back(&pending_request);
   run_loop.Run();
   DCHECK(!pending_requests_.empty());
   DCHECK_EQ(&pending_request, pending_requests_.back());
   pending_requests_.pop_back();
 
   if (pending_request.returned_property != property_to_set)
     return false;
@@ skipping 57 matching lines @@
     : target(target),
       quit_closure(quit_closure),
       returned_property(None),
       returned(false) {
 }
 
 SelectionRequestor::PendingRequest::~PendingRequest() {
 }
 
 }  // namespace ui