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

chrome/browser/printing/print_preview_data_service.h

Index: chrome/browser/printing/print_preview_data_service.h
===================================================================
--- chrome/browser/printing/print_preview_data_service.h	(revision 153583)
+++ chrome/browser/printing/print_preview_data_service.h	(working copy)
@@ -28,7 +28,7 @@
   // |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
@@ -36,22 +36,22 @@
   // 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();