[Garbled Text][Infobar] Adding infobar to suggest turning on encoding detection.

chrome/browser/garbled_text_infobar_delegate.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_GARBLED_TEXT_INFOBAR_DELEGATE_H_
+#define CHROME_BROWSER_GARBLED_TEXT_INFOBAR_DELEGATE_H_
+#pragma once
+
+#include "base/callback.h"
+#include "chrome/browser/tab_contents/confirm_infobar_delegate.h"
+
+class InfoBarTabHelper;
+
+namespace content {
+struct LoadCommittedDetails;
+}
+
+class GarbledTextInfoBarDelegate : public ConfirmInfoBarDelegate {
+ public:
+  GarbledTextInfoBarDelegate(InfoBarTabHelper* infobar_helper,
+                             const base::Closure& callback);
+
+  virtual GarbledTextInfoBarDelegate* AsGarbledTextInfoBarDelegate() OVERRIDE;
+
+ private:
+  friend class GarbledTextHelperTest;
+
+  virtual ~GarbledTextInfoBarDelegate();
+
+  virtual int GetButtons() const OVERRIDE;
+  virtual string16 GetButtonLabel(InfoBarButton button) const OVERRIDE;
+  virtual string16 GetMessageText() const OVERRIDE;
+  virtual bool ShouldExpire(
+      const content::LoadCommittedDetails&) const OVERRIDE;
+
+  virtual void InfoBarDismissed() OVERRIDE;
+  virtual bool Accept() OVERRIDE;
+  virtual bool Cancel() OVERRIDE;
+
+  base::Closure callback_;
+
+  DISALLOW_COPY_AND_ASSIGN(GarbledTextInfoBarDelegate);
+};
+
+#endif  // CHROME_BROWSER_GARBLED_TEXT_INFOBAR_DELEGATE_H_