Support handling blob URL and resolve blob references in upload data....

base/file_util_proxy.h

 // Copyright (c) 2010 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.
 
 #ifndef BASE_FILE_SYSTEM_PROXY_H_
 #define BASE_FILE_SYSTEM_PROXY_H_
 
 #include "base/callback.h"
 #include "base/platform_file.h"
 #include "base/ref_counted.h"
 #include "base/tracked_objects.h"
 
+namespace file_util {
+struct FileInfo;
+}
+
 namespace base {
 
 class MessageLoopProxy;
 
 // This class provides asynchronous access to common file routines.
 class FileUtilProxy {
  public:
   // This callback is used by methods that report only an error code.  It is
   // valid to pass NULL as the callback parameter to any function that takes a
   // StatusCallback, in which case the operation will complete silently.
@@ skipping 25 matching lines @@
   static bool Delete(scoped_refptr<MessageLoopProxy> message_loop_proxy,
                      const FilePath& file_path,
                      StatusCallback* callback);
 
   // Deletes a directory and all of its contents.
   static bool RecursiveDelete(
       scoped_refptr<MessageLoopProxy> message_loop_proxy,
       const FilePath& file_path,
       StatusCallback* callback);
 
+  // Retrieves the information about a file. It is invalid to pass NULL for the
+  // callback.
+  typedef Callback2<bool /*exists*/,
+                    const file_util::FileInfo& /*file_info*/
+                    >::Type GetFileInfoCallback;
+  static bool GetFileInfo(

[michaeln, 2010/08/31 06:02:15]

Oh... it looks like kavita is adding a very similar method in this CL...
http://codereview.chromium.org/3212002/diff/37001/38002?context=50&column_wid...

The only difference being the first param to the callback...

  61   typedef Callback2<int /* error code */,
  62       file_util::FileInfo>::Type GetFileInfoCallback;
  63   static bool GetFileInfo(scoped_refptr<MessageLoopProxy>
message_loop_proxy,
  64                           const FilePath& file_path,
  65                           GetFileInfoCallback* callback);

Can you update your CL to match this sig instead.

+      scoped_refptr<MessageLoopProxy> message_loop_proxy,
+      const FilePath& file_path,
+      GetFileInfoCallback* callback);
+
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(FileUtilProxy);
 };
 
 } // namespace base
 
 #endif  // BASE_FILE_SYSTEM_PROXY_H_