net: Rename FileStream::Open/Close with OpenSync/CloseSync.

content/browser/tab_contents/web_drag_source_mac.mm

 // 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.
 
 #import "content/browser/tab_contents/web_drag_source_mac.h"
 
 #include <sys/param.h>
 
 #include "base/bind.h"
 #include "base/file_path.h"
@@ skipping 63 matching lines @@
 // is responsible for opening the file. It takes the drop data and an open file
 // stream.
 void PromiseWriterHelper(const WebDropData& drop_data,
                          FileStream* file_stream) {
   DCHECK(file_stream);
   file_stream->Write(drop_data.file_contents.data(),
                      drop_data.file_contents.length(),
                      net::CompletionCallback());
 
   if (file_stream)
-    file_stream->Close();
+    file_stream->CloseSync();
 }
 
 }  // namespace
 
 
 @interface WebDragSource(Private)
 
 - (void)fillPasteboard;
 - (NSImage*)dragImage;
 
@@ skipping 345 matching lines @@
 
 - (NSImage*)dragImage {
   if (dragImage_)
     return dragImage_;
 
   // Default to returning a generic image.
   return gfx::GetCachedImageWithName(@"nav.pdf");
 }
 
 @end  // @implementation WebDragSource (Private)