Remove dependency on Profile's IsOffTheRecord in favicon_handler.

components/favicon/content/favicon_driver.h

+// Copyright 2014 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 COMPONENTS_FAVICON_CONTENT_FAVICON_DRIVER_H_
+#define COMPONENTS_FAVICON_CONTENT_FAVICON_DRIVER_H_
+
+#include "base/macros.h"
+
+class Profile;
+
+// Interface that allows Favicon core code to interact with its driver
+// (i.e., obtain information from it and give information to it).
+class FaviconDriver {
+ public:
+  FaviconDriver() {}
+  virtual ~FaviconDriver() {}
+
+  // Returns whether the user is operating in an off-the-record context.
+  virtual bool IsOffTheRecord() = 0;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(FaviconDriver);
+};
+
+#endif  // COMPONENTS_FAVICON_CONTENT_FAVICON_DRIVER_H_