Switch about box to web ui on Windows.

chrome/browser/ui/webui/help/version_updater_win.h

+// 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.
+
+#ifndef CHROME_BROWSER_UI_WEBUI_HELP_VERSION_UPDATER_WIN_H_
+#define CHROME_BROWSER_UI_WEBUI_HELP_VERSION_UPDATER_WIN_H_
+#pragma once
+
+#include "base/memory/ref_counted.h"
+#include "base/memory/weak_ptr.h"
+#include "base/string16.h"
+#include "chrome/browser/google/google_update.h"
+#include "chrome/browser/ui/webui/help/version_updater.h"
+
+class Version;
+
+class VersionUpdaterWin : public VersionUpdater,
+                          public GoogleUpdateStatusListener {
+ public:
+  // Got the intalled version so we can complete the handling of the
+  // UPGRADE_ALREADY_UP_TO_DATE result case.
+  void GotInstalledVersion(Version* version);

[Roger Tawa OOO till Jul 10th, 2012/07/05 16:13:22]

Could make this method private by declaring the VersionReader class inside
VersionUpdaterWin and making it a friend.

[MAD, 2012/07/05 20:50:41]

Yeah, I was hesitating... I was wondering which one was the less evil of the
two. I chose the public call instead, since nobody include us anyway, which
makes me wonder if we actually need this header file... All this code could be
in the .cc file and then we could friend the other class...

+
+ protected:
+  friend class VersionUpdater;

[Roger Tawa OOO till Jul 10th, 2012/07/05 16:13:22]

do friends go in the private section?

[MAD, 2012/07/05 20:50:41]

Done.

+
+  // Clients must use VersionUpdater::Create().
+  VersionUpdaterWin();
+  virtual ~VersionUpdaterWin();
+
+ private:
+  // VersionUpdater implementation.
+  virtual void CheckForUpdate(const StatusCallback& callback) OVERRIDE;
+  virtual void RelaunchBrowser() const OVERRIDE;
+
+  // GoogleUpdateStatusListener implementation.
+  virtual void OnReportResults(GoogleUpdateUpgradeResult result,
+                               GoogleUpdateErrorCode error_code,
+                               const string16& error_message,
+                               const string16& version) OVERRIDE;
+
+  // Update the UI to show the status of the upgrade.
+  void UpdateStatus(GoogleUpdateUpgradeResult result,
+                    GoogleUpdateErrorCode error_code,
+                    const string16& error_message);
+
+  // The class that communicates with Google Update to find out if an update is
+  // available and asks it to start an upgrade.
+  scoped_refptr<GoogleUpdate> google_updater_;
+
+  // Used for callbacks.
+  base::WeakPtrFactory<VersionUpdaterWin> weak_factory_;
+
+  // Callback used to communicate update status to the client.
+  StatusCallback callback_;
+
+  DISALLOW_COPY_AND_ASSIGN(VersionUpdaterWin);
+};
+
+#endif  // CHROME_BROWSER_UI_WEBUI_HELP_VERSION_UPDATER_WIN_H_