Chromium Blob hacking

webkit/browser/blob/blob_storage_context.h

 // Copyright (c) 2013 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 WEBKIT_BROWSER_BLOB_BLOB_STORAGE_CONTEXT_H_
 #define WEBKIT_BROWSER_BLOB_BLOB_STORAGE_CONTEXT_H_
 
 #include <map>
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
+#include "webkit/browser/blob/blob_data_handle.h"
 #include "webkit/browser/webkit_storage_browser_export.h"
 #include "webkit/common/blob/blob_data.h"
 
 class GURL;
 
 namespace base {
 class FilePath;
 class Time;
 }
 
@@ skipping 11 matching lines @@
   BlobStorageContext();
   ~BlobStorageContext();
 
   scoped_ptr<BlobDataHandle> GetBlobDataFromUUID(const std::string& uuid);
   scoped_ptr<BlobDataHandle> GetBlobDataFromPublicURL(const GURL& url);
 
   // Useful for coining blobs from within the browser process. If the
   // blob cannot be added due to memory consumption, returns NULL.
   scoped_ptr<BlobDataHandle> AddFinishedBlob(const BlobData* blob_data);
 
+  // Temporary support for mapping oldstyle blobUrls to new style uuids.
+  std::string LookupUuidFromDeprecatedURL(const GURL& url);
+
  private:
   friend class BlobDataHandle;
   friend class BlobStorageHost;
+  friend class ViewBlobInternalsJob;
 
   enum EntryFlags {
     BEING_BUILT = 1 << 0,
     EXCEEDED_MEMORY = 1 << 1,
   };
 
   struct BlobMapEntry {
     int refcount;
     int flags;
     scoped_refptr<BlobData> data;
@@ skipping 10 matching lines @@
   void StartBuildingBlob(const std::string& uuid);
   void AppendBlobDataItem(const std::string& uuid,
                           const BlobData::Item& data_item);
   void FinishBuildingBlob(const std::string& uuid, const std::string& type);
   void CancelBuildingBlob(const std::string& uuid);
   void IncrementBlobRefCount(const std::string& uuid);
   void DecrementBlobRefCount(const std::string& uuid);
   void RegisterPublicBlobURL(const GURL& url, const std::string& uuid);
   void RevokePublicBlobURL(const GURL& url);
 
+  // Temporary support for mapping old style blobUrls to new style uuids.
+  void DeprecatedRegisterPrivateBlobURL(const GURL& url,
+                                        const std::string& uuid);
+  void DeprecatedRevokePrivateBlobURL(const GURL& url);
+
   bool ExpandStorageItems(BlobData* target_blob_data,
                           BlobData* src_blob_data,
                           uint64 offset,
                           uint64 length);
   bool AppendBytesItem(BlobData* target_blob_data,
                        const char* data, int64 length);
   void AppendFileItem(BlobData* target_blob_data,
                       const base::FilePath& file_path,
                       uint64 offset, uint64 length,
                       const base::Time& expected_modification_time);
   void AppendFileSystemFileItem(
       BlobData* target_blob_data,
       const GURL& url, uint64 offset, uint64 length,
       const base::Time& expected_modification_time);
 
   bool IsInUse(const std::string& uuid);
   bool IsBeingBuilt(const std::string& uuid);
   bool IsUrlRegistered(const GURL& blob_url);
 
   BlobMap blob_map_;
   BlobURLMap public_blob_urls_;
+  BlobURLMap deprecated_blob_urls_;
 
   // Used to keep track of how much memory is being utitlized for blob data,
   // we count only the items of TYPE_DATA which are held in memory and not
   // items of TYPE_FILE.
   int64 memory_usage_;
 
   DISALLOW_COPY_AND_ASSIGN(BlobStorageContext);
 };
 
 }  // namespace webkit_blob
 
 #endif  // WEBKIT_BROWSER_BLOB_BLOB_STORAGE_CONTEXT_H_