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

base/file_util_proxy.h

Index: base/file_util_proxy.h
===================================================================
--- base/file_util_proxy.h	(revision 57912)
+++ base/file_util_proxy.h	(working copy)
@@ -10,6 +10,10 @@
 #include "base/ref_counted.h"
 #include "base/tracked_objects.h"
 
+namespace file_util {
+struct FileInfo;
+}
+
 namespace base {
 
 class MessageLoopProxy;
@@ -55,6 +59,16 @@
       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);
 };