browser: Split out the prefs registration of invert bubble from views file.

chrome/browser/accessibility/invert_bubble_prefs.h

Index: chrome/browser/accessibility/invert_bubble_prefs.h
diff --git a/chrome/browser/accessibility/invert_bubble_prefs.h b/chrome/browser/accessibility/invert_bubble_prefs.h
new file mode 100644
index 0000000000000000000000000000000000000000..979b123855f25b8d9c12a26d2533f3b5101ff57b
--- /dev/null
+++ b/chrome/browser/accessibility/invert_bubble_prefs.h
@@ -0,0 +1,17 @@
+// 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_ACCESSIBILITY_INVERT_BUBBLE_PREFS_H_
+#define CHROME_BROWSER_ACCESSIBILITY_INVERT_BUBBLE_PREFS_H_
+#pragma once
+
+class PrefService;
+
+namespace browser {
+
+void RegisterInvertBubbleUserPrefs(PrefService* prefs);
+
+}  // namespace browser
+
+#endif  // CHROME_BROWSER_ACCESSIBILITY_INVERT_BUBBLE_PREFS_H_