Creating a new directory chrome/renderer/searchbox and moving appropriate code to it.

chrome/renderer/searchbox/searchbox.h

Index: chrome/renderer/searchbox/searchbox.h
diff --git a/chrome/renderer/searchbox.h b/chrome/renderer/searchbox/searchbox.h
similarity index 92%
rename from chrome/renderer/searchbox.h
rename to chrome/renderer/searchbox/searchbox.h
index 844787068ed4d29926adb1e40e256d71fae00a1b..632db0b9c3a79c7e481e7347ea374cf11f3eb2ca 100644
--- a/chrome/renderer/searchbox.h
+++ b/chrome/renderer/searchbox/searchbox.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_RENDERER_SEARCHBOX_H_
-#define CHROME_RENDERER_SEARCHBOX_H_
+#ifndef CHROME_RENDERER_SEARCHBOX_SEARCHBOX_H_
+#define CHROME_RENDERER_SEARCHBOX_SEARCHBOX_H_
 
 #include <vector>
 
@@ -63,4 +63,4 @@ class SearchBox : public content::RenderViewObserver,
   DISALLOW_COPY_AND_ASSIGN(SearchBox);
 };
 
-#endif  // CHROME_RENDERER_SEARCHBOX_H_
+#endif  // CHROME_RENDERER_SEARCHBOX_SEARCHBOX_H_