Removed redundant PrintingUIWebContentsObserver.

chrome/browser/printing/printer_query.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 "chrome/browser/printing/printer_query.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/message_loop/message_loop.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/values.h"
 #include "chrome/browser/printing/print_job_worker.h"
-#include "chrome/browser/printing/printing_ui_web_contents_observer.h"
 
 namespace printing {
 
 PrinterQuery::PrinterQuery(int render_process_id, int render_view_id)
     : worker_(new PrintJobWorker(render_process_id, render_view_id, this)),
       is_print_dialog_box_shown_(false),
       cookie_(PrintSettings::NewCookie()),
       last_status_(PrintingContext::FAILED) {
   DCHECK(base::MessageLoopForIO::IsCurrent());
 }
@@ skipping 101 matching lines @@
 
 bool PrinterQuery::is_callback_pending() const {
   return !callback_.is_null();
 }
 
 bool PrinterQuery::is_valid() const {
   return worker_.get() != NULL;
 }
 
 }  // namespace printing