Implement window.print() on Android

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"
@@ skipping 50 matching lines @@
 
 int PrinterQuery::cookie() const {
   return cookie_;
 }
 
 void PrinterQuery::GetSettings(
     GetSettingsAskParam ask_user_for_settings,
     int expected_page_count,
     bool has_selection,
     MarginType margin_type,
+    bool is_scripted,
     const base::Closure& callback) {
   DCHECK(RunsTasksOnCurrentThread());
-  DCHECK(!is_print_dialog_box_shown_);
+  DCHECK(!is_print_dialog_box_shown_ || !is_scripted);
 
   StartWorker(callback);
 
   // Real work is done in PrintJobWorker::GetSettings().
-  is_print_dialog_box_shown_ = ask_user_for_settings == ASK_USER;
+  is_print_dialog_box_shown_ =
+      ask_user_for_settings == GetSettingsAskParam::ASK_USER;
   worker_->PostTask(FROM_HERE,
                     base::Bind(&PrintJobWorker::GetSettings,
                                base::Unretained(worker_.get()),
                                is_print_dialog_box_shown_,
                                expected_page_count,
                                has_selection,
-                               margin_type));
+                               margin_type,
+                               is_scripted));
 }
 
 void PrinterQuery::SetSettings(scoped_ptr<base::DictionaryValue> new_settings,
                                const base::Closure& callback) {
   StartWorker(callback);
 
   worker_->PostTask(FROM_HERE,
                     base::Bind(&PrintJobWorker::SetSettings,
                                base::Unretained(worker_.get()),
                                base::Passed(&new_settings)));
@@ skipping 23 matching lines @@
 
 bool PrinterQuery::is_callback_pending() const {
   return !callback_.is_null();
 }
 
 bool PrinterQuery::is_valid() const {
   return worker_.get() != NULL;
 }
 
 }  // namespace printing