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

content/common/fileapi/file_system_dispatcher.cc

Index: content/common/fileapi/file_system_dispatcher.cc
===================================================================
--- content/common/fileapi/file_system_dispatcher.cc	(revision 171309)
+++ content/common/fileapi/file_system_dispatcher.cc	(working copy)
@@ -185,13 +185,13 @@
 
 bool FileSystemDispatcher::Write(
     const GURL& path,
-    const GURL& blob_url,
+    const std::string& blob_uuid,
     int64 offset,
     int* request_id_out,
     fileapi::FileSystemCallbackDispatcher* dispatcher) {
   int request_id = dispatchers_.Add(dispatcher);
   if (!ChildThread::current()->Send(
-          new FileSystemHostMsg_Write(request_id, path, blob_url, offset))) {
+          new FileSystemHostMsg_Write(request_id, path, blob_uuid, offset))) {
     dispatchers_.Remove(request_id);  // destroys |dispatcher|
     return false;
   }
@@ -251,13 +251,12 @@
 }
 
 bool FileSystemDispatcher::CreateSnapshotFile(
-    const GURL& blob_url,
     const GURL& file_path,
     fileapi::FileSystemCallbackDispatcher* dispatcher) {
   int request_id = dispatchers_.Add(dispatcher);
   if (!ChildThread::current()->Send(
           new FileSystemHostMsg_CreateSnapshotFile(
-              request_id, blob_url, file_path))) {
+              request_id, file_path))) {
     dispatchers_.Remove(request_id); // destroys |dispatcher|
     return false;
   }
@@ -293,6 +292,18 @@
   dispatchers_.Remove(request_id);
 }
 
+void FileSystemDispatcher::OnDidCreateSnapshotFile(
+    int request_id, const base::PlatformFileInfo& file_info,
+    const FilePath& platform_path) {
+  fileapi::FileSystemCallbackDispatcher* dispatcher =
+      dispatchers_.Lookup(request_id);
+  DCHECK(dispatcher);
+  dispatcher->DidCreateSnapshotFile(file_info, platform_path);
+  dispatchers_.Remove(request_id);
+  ChildThread::current()->Send(
+      new FileSystemHostMsg_DidReceiveSnapshotFile(request_id));
+}
+
 void FileSystemDispatcher::OnDidReadDirectory(
     int request_id,
     const std::vector<base::FileUtilProxy::Entry>& entries,