Notify CloseFile from Pepper to FileSystem.

content/browser/fileapi/fileapi_message_filter.cc

Index: content/browser/fileapi/fileapi_message_filter.cc
diff --git a/content/browser/fileapi/fileapi_message_filter.cc b/content/browser/fileapi/fileapi_message_filter.cc
index 5258fbffd541a9015b580ed36a18ee9c8c53a99d..8e0959503dbb9bd474f982d075f1a3aeeaaa7980 100644
--- a/content/browser/fileapi/fileapi_message_filter.cc
+++ b/content/browser/fileapi/fileapi_message_filter.cc
@@ -146,6 +146,7 @@ bool FileAPIMessageFilter::OnMessageReceived(
     IPC_MESSAGE_HANDLER(FileSystemHostMsg_TouchFile, OnTouchFile)
     IPC_MESSAGE_HANDLER(FileSystemHostMsg_CancelWrite, OnCancel)
     IPC_MESSAGE_HANDLER(FileSystemHostMsg_OpenFile, OnOpenFile)
+    IPC_MESSAGE_HANDLER(FileSystemHostMsg_NotifyCloseFile, OnNotifyCloseFile)
     IPC_MESSAGE_HANDLER(FileSystemHostMsg_CreateSnapshotFile,
                         OnCreateSnapshotFile)
     IPC_MESSAGE_HANDLER(FileSystemHostMsg_WillUpdate, OnWillUpdate)
@@ -393,6 +394,20 @@ void FileAPIMessageFilter::OnOpenFile(
       base::Bind(&FileAPIMessageFilter::DidOpenFile, this, request_id));
 }
 
+void FileAPIMessageFilter::OnNotifyCloseFile(int request_id, const GURL& path) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  base::PlatformFileError error;
+  const int open_permissions = base::PLATFORM_FILE_OPEN;
+  if (!HasPermissionsForFile(path, open_permissions, &error)) {
+    Send(new FileSystemMsg_DidFail(request_id, error));

[kinuko, 2012/06/13 06:38:29]

What could happen if one opens a writable file, writing something but then loses
the write permission before closing?

[kinaba, 2012/06/25 11:14:02]

Fm, right. Removed the permission check.

+    return;
+  }
+
+  GetNewOperation(path, request_id)->NotifyCloseFile(
+      path,
+      base::Bind(&FileAPIMessageFilter::DidFinish, this, request_id));
+}
+
 void FileAPIMessageFilter::OnWillUpdate(const GURL& path) {
   GURL origin_url;
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));