Add support for using DOM Distiller in incognito.

chrome/browser/dom_distiller/profile_utils.h

Index: chrome/browser/dom_distiller/profile_utils.h
diff --git a/chrome/browser/dom_distiller/profile_utils.h b/chrome/browser/dom_distiller/profile_utils.h
new file mode 100644
index 0000000000000000000000000000000000000000..8d6e2953346191d5d25a1fea0a8149bdd1a755d0
--- /dev/null
+++ b/chrome/browser/dom_distiller/profile_utils.h
@@ -0,0 +1,14 @@
+// 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 CHROME_BROWSER_DOM_DISTILLER_PROFILE_UTILS_H_
+#define CHROME_BROWSER_DOM_DISTILLER_PROFILE_UTILS_H_
+
+#include "chrome/browser/profiles/profile.h"
+
+// Setup URLDataSource for the chrome-distiller:// scheme for the given
+// |profile|.
+void RegisterDomDistillerViewerSource(Profile* profile);
+
+#endif  // CHROME_BROWSER_DOM_DISTILLER_PROFILE_UTILS_H_