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

content/common/fileapi/file_system_dispatcher.h

Index: content/common/fileapi/file_system_dispatcher.h
diff --git a/content/common/fileapi/file_system_dispatcher.h b/content/common/fileapi/file_system_dispatcher.h
index fb029f0c087a11640909a452b8395473f4c5b00d..bd725de5e77b14f2c5de36943a998d127fad511f 100644
--- a/content/common/fileapi/file_system_dispatcher.h
+++ b/content/common/fileapi/file_system_dispatcher.h
@@ -83,6 +83,8 @@ class FileSystemDispatcher : public IPC::Listener {
                 int file_flags,  // passed to FileUtilProxy::CreateOrOpen
                 fileapi::FileSystemCallbackDispatcher* dispatcher);
 
+  bool NotifyFileClosed(const GURL& path);
+
   bool CreateSnapshotFile(const GURL& blod_url,
                           const GURL& file_path,
                           fileapi::FileSystemCallbackDispatcher* dispatcher);
@@ -104,6 +106,8 @@ class FileSystemDispatcher : public IPC::Listener {
   void OnDidOpenFile(
       int request_id,
       IPC::PlatformFileForTransit file);
+  void OnDidCloseFile(int request_id,
+                      base::PlatformFileError error_code);
 
   IDMap<fileapi::FileSystemCallbackDispatcher, IDMapOwnPointer> dispatchers_;