FileSystem mods: Changes to snapshot file creation to remove dependencies on blobs.

content/common/fileapi/file_system_dispatcher.cc

Index: content/common/fileapi/file_system_dispatcher.cc
===================================================================
--- content/common/fileapi/file_system_dispatcher.cc	(revision 182366)
+++ content/common/fileapi/file_system_dispatcher.cc	(working copy)
@@ -251,12 +251,25 @@
 }
 
 bool FileSystemDispatcher::CreateSnapshotFile(
+    const GURL& file_path,
+    fileapi::FileSystemCallbackDispatcher* dispatcher) {
+  int request_id = dispatchers_.Add(dispatcher);
+  if (!ChildThread::current()->Send(
+          new FileSystemHostMsg_CreateSnapshotFile(
+              request_id, file_path))) {
+    dispatchers_.Remove(request_id);  // destroys |dispatcher|
+    return false;
+  }
+  return true;
+}
+
+bool FileSystemDispatcher::CreateSnapshotFile_Deprecated(
     const GURL& blob_url,
     const GURL& file_path,
     fileapi::FileSystemCallbackDispatcher* dispatcher) {
   int request_id = dispatchers_.Add(dispatcher);
   if (!ChildThread::current()->Send(
-          new FileSystemHostMsg_CreateSnapshotFile(
+          new FileSystemHostMsg_CreateSnapshotFile_Deprecated(
               request_id, blob_url, file_path))) {
     dispatchers_.Remove(request_id); // destroys |dispatcher|
     return false;
@@ -293,6 +306,18 @@
   dispatchers_.Remove(request_id);
 }
 
+void FileSystemDispatcher::OnDidCreateSnapshotFile(
+    int request_id, const base::PlatformFileInfo& file_info,
+    const base::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,