Wired support for file truncating with RemoteFileSystemOperation::OpenFile() method (case when base…

content/common/fileapi/file_system_dispatcher.cc

 // 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.
 
 #include "content/common/fileapi/file_system_dispatcher.h"
 
 #include "base/file_util.h"
 #include "base/process.h"
 #include "content/common/child_thread.h"
 #include "content/common/fileapi/file_system_messages.h"
@@ skipping 212 matching lines @@
   if (!ChildThread::current()->Send(
           new FileSystemHostMsg_OpenFile(
               request_id, file_path, file_flags))) {
     dispatchers_.Remove(request_id);  // destroys |dispatcher|
     return false;
   }
 
   return true;
 }
 
+bool FileSystemDispatcher::NotifyFileClosed(
+    const GURL& path) {
+  return ChildThread::current()->Send(
+      new FileSystemHostMsg_NotifyFileClosed(path));
+}
+
 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))) {
     dispatchers_.Remove(request_id); // destroys |dispatcher|
     return false;
@@ skipping 61 matching lines @@
 }
 
 void FileSystemDispatcher::OnDidOpenFile(
     int request_id, IPC::PlatformFileForTransit file) {
   fileapi::FileSystemCallbackDispatcher* dispatcher =
       dispatchers_.Lookup(request_id);
   DCHECK(dispatcher);
   dispatcher->DidOpenFile(IPC::PlatformFileForTransitToPlatformFile(file));
   dispatchers_.Remove(request_id);
 }