Print Preview: Populating print preview tab title as soon as it is known.

chrome/browser/ui/webui/print_preview_ui.h

 // Copyright (c) 2011 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_UI_WEBUI_PRINT_PREVIEW_UI_H_
 #define CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_UI_H_
 #pragma once
 
 #include <string>
 
@@ skipping 30 matching lines @@
   // Clear the existing print preview data.
   void ClearAllPreviewData();
 
   // Returns the available draft page count.
   int GetAvailableDraftPageCount();
 
   // Setters
   void SetInitiatorTabURLAndTitle(const std::string& initiator_url,
                                   const string16& initiator_tab_title);
 
+  // Notify the Web UI about the initiator tab title.
+  void OnGetInitiatorTabTitle();
+
   // Determines whether to cancel a print preview request based on
   // |preview_ui_addr| and |request_id|.
   // Can be called from any thread.
   static void GetCurrentPrintPreviewStatus(const std::string& preview_ui_addr,
                                            int request_id,
                                            bool* cancel);
 
   // Returns a string to uniquely identify this PrintPreviewUI.
   std::string GetPrintPreviewUIAddress() const;
 
@@ skipping 66 matching lines @@
   std::string initiator_url_;
 
   // Store the initiator tab title, used for populating the print preview tab
   // title.
   string16 initiator_tab_title_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintPreviewUI);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_PRINT_PREVIEW_UI_H_