Clean up Extension Action Handlers Pt 1/2

chrome/common/extensions/manifest_handlers/extension_action_handler.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 CHROME_COMMON_EXTENSIONS_MANIFEST_HANDLERS_EXTENSION_ACTION_HANDLER_H_
+#define CHROME_COMMON_EXTENSIONS_MANIFEST_HANDLERS_EXTENSION_ACTION_HANDLER_H_
+
+#include <string>
+
+#include "extensions/common/manifest_handler.h"
+
+namespace extensions {
+
+// Parses the "page_action" and "browser_action" manifest keys.
+class ExtensionActionHandler : public ManifestHandler {
+ public:
+  ExtensionActionHandler();
+  virtual ~ExtensionActionHandler();
+
+  virtual bool Parse(Extension* extension, base::string16* error) OVERRIDE;
+  virtual bool Validate(const Extension* extension,
+                        std::string* error,
+                        std::vector<InstallWarning>* warnings) const OVERRIDE;
+
+ private:
+  virtual const std::vector<std::string> Keys() const OVERRIDE;
+
+  DISALLOW_COPY_AND_ASSIGN(ExtensionActionHandler);
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_COMMON_EXTENSIONS_MANIFEST_HANDLERS_EXTENSION_ACTION_HANDLER_H_