Move infobar extension API implementation to infobars dir.

chrome/browser/extensions/extension_infobar_module.h

Index: chrome/browser/extensions/extension_infobar_module.h
diff --git a/chrome/browser/extensions/extension_infobar_module.h b/chrome/browser/extensions/extension_infobar_module.h
deleted file mode 100644
index 455d334eaf0cbd490b9700d700641cac9348aec2..0000000000000000000000000000000000000000
--- a/chrome/browser/extensions/extension_infobar_module.h
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2010 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_EXTENSIONS_EXTENSION_INFOBAR_MODULE_H_
-#define CHROME_BROWSER_EXTENSIONS_EXTENSION_INFOBAR_MODULE_H_
-#pragma once
-
-#include "chrome/browser/extensions/extension_function.h"
-
-class ShowInfoBarFunction : public SyncExtensionFunction {
-  virtual ~ShowInfoBarFunction() {}
-  virtual bool RunImpl();
-  DECLARE_EXTENSION_FUNCTION_NAME("experimental.infobars.show")
-};
-
-#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_INFOBAR_MODULE_H_