Index: content/browser/download/download_item.h |
diff --git a/content/browser/download/download_item.h b/content/browser/download/download_item.h |
index c51f35e22e2499d236f6f980219704aa881a18c9..23350248a99e99050649320202f0050bc80e94db 100644 |
--- a/content/browser/download/download_item.h |
+++ b/content/browser/download/download_item.h |
@@ -18,6 +18,7 @@ |
#define CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_ITEM_H_ |
#pragma once |
+#include <map> |
#include <string> |
#include "base/string16.h" |
@@ -100,6 +101,13 @@ class CONTENT_EXPORT DownloadItem { |
virtual ~Observer() {} |
}; |
+ // Interface for data that can be stored associated with (and owned |
+ // by) an object of this class via GetExternalData/SetExternalData. |
+ class ExternalData { |
+ public: |
+ virtual ~ExternalData() {}; |
+ }; |
+ |
virtual ~DownloadItem(); |
virtual void AddObserver(DownloadItem::Observer* observer) = 0; |
@@ -308,6 +316,21 @@ class CONTENT_EXPORT DownloadItem { |
// rewrites of the DownloadManager queues. |
virtual void OffThreadCancel(DownloadFileManager* file_manager) = 0; |
+ // Manage data owned by other subsystems associated with the |
+ // DownloadItem. By custom, key is the address of a |
+ // static char subsystem_specific_string[] = ".."; defined |
+ // in the subsystem, but the only requirement of this interface |
+ // is that the key be unique over all data stored with this |
+ // DownloadItem. |
+ // |
+ // Note that SetExternalData takes ownership of the |
+ // passed object; it will be destroyed when the DownloadItem is. |
+ // If an object is already held by the DownloadItem associated with |
+ // the passed key, it will be destroyed if overwriten by a new pointer |
+ // (overwrites by the same pointer are ignored). |
+ virtual ExternalData* GetExternalData(const void* key) = 0; |
+ virtual void SetExternalData(const void* key, ExternalData* data) = 0; |
+ |
virtual std::string DebugString(bool verbose) const = 0; |
virtual void MockDownloadOpenForTesting() = 0; |