Merge 153342 - Print preview: Use an ID instead of memory pointer string in WebUI.

chrome/browser/printing/print_preview_data_service.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_PRINT_PREVIEW_DATA_SERVICE_H_
 #define CHROME_BROWSER_PRINTING_PRINT_PREVIEW_DATA_SERVICE_H_
 
 #include <map>
 #include <string>
 
@@ skipping 10 matching lines @@
 // PrintPreviewDataService manages data stores for chrome://print requests.
 // It owns the data store object and is responsible for freeing it.
 class PrintPreviewDataService {
  public:
   static PrintPreviewDataService* GetInstance();
 
   // Get the data entry from PrintPreviewDataStore. |index| is zero-based or
   // |printing::COMPLETE_PREVIEW_DOCUMENT_INDEX| to represent complete preview
   // data. Use |index| to retrieve a specific preview page data. |data| is set
   // to NULL if the requested page is not yet available.
-  void GetDataEntry(const std::string& preview_ui_addr_str, int index,
+  void GetDataEntry(int32 preview_ui_id, int index,
                     scoped_refptr<base::RefCountedBytes>* data);
 
   // Set/Update the data entry in PrintPreviewDataStore. |index| is zero-based
   // or |printing::COMPLETE_PREVIEW_DOCUMENT_INDEX| to represent complete
   // preview data. Use |index| to set/update a specific preview page data.
   // NOTE: PrintPreviewDataStore owns the data. Do not refcount |data| before
   // calling this function. It will be refcounted in PrintPreviewDataStore.
-  void SetDataEntry(const std::string& preview_ui_addr_str, int index,
+  void SetDataEntry(int32 preview_ui_id, int index,
                     const base::RefCountedBytes* data);
 
   // Remove the corresponding PrintPreviewUI entry from the map.
-  void RemoveEntry(const std::string& preview_ui_addr_str);
+  void RemoveEntry(int32 preview_ui_id);
 
   // Returns the available draft page count.
-  int GetAvailableDraftPageCount(const std::string& preview_ui_addr_str);
+  int GetAvailableDraftPageCount(int32 preview_ui_id);
 
  private:
   friend struct DefaultSingletonTraits<PrintPreviewDataService>;
 
   // 1:1 relationship between PrintPreviewUI and data store object.
-  // Key: Print preview UI address string.
+  // Key: PrintPreviewUI ID.
   // Value: Print preview data store object.
-  typedef std::map<std::string, scoped_refptr<PrintPreviewDataStore> >
+  typedef std::map<int32, scoped_refptr<PrintPreviewDataStore> >
       PreviewDataStoreMap;
 
   PrintPreviewDataService();
   virtual ~PrintPreviewDataService();
 
   PreviewDataStoreMap data_store_map_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintPreviewDataService);
 };
 
 #endif  // CHROME_BROWSER_PRINTING_PRINT_PREVIEW_DATA_SERVICE_H_