Move ManifestHandlers to extensions/

chrome/common/extensions/manifest_handlers/requirements_handler.h

-// Copyright (c) 2013 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_REQUIREMENTS_HANDLER_H_
-#define CHROME_COMMON_EXTENSIONS_MANIFEST_HANDLERS_REQUIREMENTS_HANDLER_H_
-
-#include <string>
-
-#include "base/memory/scoped_ptr.h"
-#include "extensions/common/extension.h"
-#include "extensions/common/manifest.h"
-#include "extensions/common/manifest_handler.h"
-
-namespace extensions {
-
-// Declared requirements for the extension.
-struct RequirementsInfo : public Extension::ManifestData {
-  explicit RequirementsInfo(const Manifest* manifest);
-  virtual ~RequirementsInfo();
-
-  bool webgl;
-  bool css3d;
-  bool npapi;
-
-  static const RequirementsInfo& GetRequirements(const Extension* extension);
-};
-
-// Parses the "requirements" manifest key.
-class RequirementsHandler : public ManifestHandler {
- public:
-  RequirementsHandler();
-  virtual ~RequirementsHandler();
-
-  virtual bool Parse(Extension* extension, string16* error) OVERRIDE;
-
-  virtual bool AlwaysParseForType(Manifest::Type type) const OVERRIDE;
-
-  virtual const std::vector<std::string> PrerequisiteKeys() const OVERRIDE;
-
- private:
-  virtual const std::vector<std::string> Keys() const OVERRIDE;
-
-  DISALLOW_COPY_AND_ASSIGN(RequirementsHandler);
-};
-
-}  // namespace extensions
-
-#endif  // CHROME_COMMON_EXTENSIONS_MANIFEST_HANDLERS_REQUIREMENTS_HANDLER_H_