********** Chromium Blob hacking

content/common/fileapi/webblob_messages.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.
 
 // IPC messages for HTML5 Blob.
 // Multiply-included message file, hence no include guard.
 
 #include "content/public/common/common_param_traits.h"
 #include "ipc/ipc_message_macros.h"
 #include "webkit/blob/blob_data.h"
 
 #define IPC_MESSAGE_START BlobMsgStart
 
 // Blob messages sent from the renderer to the browser.
 
-// Registers a blob as being built.
-IPC_MESSAGE_CONTROL1(BlobHostMsg_StartBuildingBlob,
-                     GURL /* url */)
-
-// Appends data to a blob being built.
-IPC_MESSAGE_CONTROL2(BlobHostMsg_AppendBlobDataItem,
-                     GURL /* url */,
+IPC_MESSAGE_CONTROL1(BlobHostMsg_StartBuildingBlob2,
+                     std::string /*uuid */)
+IPC_MESSAGE_CONTROL2(BlobHostMsg_AppendBlobDataItem2,
+                     std::string /* uuid */,
                      webkit_blob::BlobData::Item)
-
-// Appends data to a blob being built.
-IPC_SYNC_MESSAGE_CONTROL3_0(BlobHostMsg_SyncAppendSharedMemory,
-                            GURL /* url */,
+IPC_SYNC_MESSAGE_CONTROL3_0(BlobHostMsg_AppendSharedMemory2,
+                            std::string /*uuid*/,
                             base::SharedMemoryHandle,
                             size_t /* buffer size */)
-
-// Finishes building a blob.
-IPC_MESSAGE_CONTROL2(BlobHostMsg_FinishBuildingBlob,
-                     GURL /* url */,
+IPC_MESSAGE_CONTROL2(BlobHostMsg_FinishBuildingBlob2,
+                     std::string /* uuid */,
                      std::string /* content_type */)
 
-// Creates a new blob that's a clone of an existing src blob.
-// The source blob must be fully built.
-IPC_MESSAGE_CONTROL2(BlobHostMsg_CloneBlob,
-                     GURL /* url */,
-                     GURL /* src_url */)
-
-// Removes a blob.
-IPC_MESSAGE_CONTROL1(BlobHostMsg_RemoveBlob,
-                     GURL /* url */)
+IPC_MESSAGE_CONTROL1(BlobHostMsg_IncrementBlobRefCount,
+                     std::string /* uuid */)
+IPC_MESSAGE_CONTROL1(BlobHostMsg_DecrementBlobRefCount,
+                     std::string /* uuid */)
+IPC_MESSAGE_CONTROL2(BlobHostMsg_RegisterPublicBlobURL,
+                     GURL,
+                     std::string /* uuid */)
+IPC_MESSAGE_CONTROL1(BlobHostMsg_RevokePublicBlobURL,
+                     GURL)