Implement download link in chrome://indexeddb-internals/

content/browser/indexed_db/indexed_db_internals_ui.h

Index: content/browser/indexed_db/indexed_db_internals_ui.h
diff --git a/content/browser/indexed_db/indexed_db_internals_ui.h b/content/browser/indexed_db/indexed_db_internals_ui.h
index 174db191bc29566b86c6b7ebdcc63f0a8f459442..2d0c53b730b68a6dcfc0c5f4f4bdd3ac02f9c0ae 100644
--- a/content/browser/indexed_db/indexed_db_internals_ui.h
+++ b/content/browser/indexed_db/indexed_db_internals_ui.h
@@ -11,12 +11,14 @@
 #include "base/memory/scoped_ptr.h"
 #include "content/public/browser/indexed_db_context.h"
 #include "content/public/browser/web_ui_controller.h"
+#include "net/base/net_errors.h"
 
 namespace base { class ListValue; }
 
 namespace content {
 
 class StoragePartition;
+class DownloadItem;
 
 // The implementation for the chrome://indexeddb-internals page.
 class IndexedDBInternalsUI : public WebUIController {
@@ -37,6 +39,20 @@ class IndexedDBInternalsUI : public WebUIController {
                                              std::vector<base::FilePath>* paths,
                                              StoragePartition* partition);
 
+  void DownloadOriginData(const base::ListValue* args);
+  void DownloadOriginDataOnWebkitThread(const base::FilePath& partition_path,
+                                        scoped_refptr<IndexedDBContext> context,
+                                        const GURL& origin_url);
+  void OnDownloadDataReady(const base::FilePath& partition_path,
+                           const GURL& origin_url,
+                           const base::FilePath temp_path,
+                           const base::FilePath zip_path);
+  void OnDownloadStarted(const base::FilePath& partition_path,
+                         const GURL& origin_url,
+                         const base::FilePath& temp_path,
+                         content::DownloadItem* item,
+                         net::Error error);
+
   DISALLOW_COPY_AND_ASSIGN(IndexedDBInternalsUI);
 };