Implement window.print() on Android

chrome/browser/printing/printer_query.h

 // 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.
 
 #ifndef CHROME_BROWSER_PRINTING_PRINTER_QUERY_H_
 #define CHROME_BROWSER_PRINTING_PRINTER_QUERY_H_
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/printing/print_job_worker_owner.h"
 #include "printing/print_job_constants.h"
 
 namespace base {
 class DictionaryValue;
 }
 
 namespace printing {
 
 class PrintDestinationInterface;
 class PrintJobWorker;
 
 // Query the printer for settings.
 class PrinterQuery : public PrintJobWorkerOwner {
  public:
-  // GetSettings() UI parameter.
-  enum GetSettingsAskParam {
-    DEFAULTS,
-    ASK_USER,
-  };
-
   PrinterQuery(int render_process_id, int render_view_id);
 
   // PrintJobWorkerOwner implementation.
   void GetSettingsDone(const PrintSettings& new_settings,
                        PrintingContext::Result result) override;
+
+  void ShowSystemDialogDone(PrintingContext::Result result) override;
+
   PrintJobWorker* DetachWorker(PrintJobWorkerOwner* new_owner) override;
   const PrintSettings& settings() const override;
   int cookie() const override;
 
   // Initializes the printing context. It is fine to call this function multiple
   // times to reinitialize the settings. |web_contents_observer| can be queried
   // to find the owner of the print setting dialog box. It is unused when
   // |ask_for_user_settings| is DEFAULTS.
   void GetSettings(
       GetSettingsAskParam ask_user_for_settings,
@@ skipping 42 matching lines @@
 
   // Callback waiting to be run.
   base::Closure callback_;
 
   DISALLOW_COPY_AND_ASSIGN(PrinterQuery);
 };
 
 }  // namespace printing
 
 #endif  // CHROME_BROWSER_PRINTING_PRINTER_QUERY_H_