Make ProfileImageDownloader available to non-chromeos code

chrome/browser/profiles/profile_downloader_delegate.h

+// Copyright (c) 2011 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 CHROME_BROWSER_PROFILES_PROFILE_DOWNLOADER_DELEGATE_H_
+#define CHROME_BROWSER_PROFILES_PROFILE_DOWNLOADER_DELEGATE_H_
+#pragma once
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/string16.h"
+
+class Profile;
+class ProfileDownloader;
+
+// Reports on success or failure of Profile download. It is OK to delete the
+// |ProfileImageDownloader| instance in any of these handlers.
+class ProfileDownloaderDelegate {
+ public:
+  virtual ~ProfileDownloaderDelegate() {}
+
+  // Returns the desired size of the profile image.
+  virtual int GetDesiredImageSize() = 0;
+
+  // Returns the browser profile associated with this download request.
+  virtual Profile* GetBrowserProfile() = 0;
+
+  // Called when the download is complete. On success delegate should query
+  // the downloader for values.
+  virtual void OnDownloadComplete(ProfileDownloader* downloader,

[Ivan Korotkov, 2011/11/17 08:37:12]

Are you planning this for a situation when there might be multiple
ProfileDownloader instances?

Not sure whether it'll be important for your case but: note that if image
decoding fails, failure is reported yet full name may be still valid and can be
queried.

[sail, 2011/11/21 22:01:00]

On Chrome there will definitely be multiple downloader instances since we need
one for each profile. On Chrome you can have multiple profiles open
simultaneously.
Yea, this case isn't very important and I think ignoring it makes the API much
simpler.

+                                  bool success) = 0;
+};
+
+#endif  // CHROME_BROWSER_PROFILES_PROFILE_DOWNLOADER_DELEGATE_H_