Move manifest_handler_helpers to //extensions

chrome/common/extensions/manifest_handler_helpers.h

-// 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_COMMON_EXTENSIONS_MANIFEST_HANDLER_HELPERS_H_
-#define CHROME_COMMON_EXTENSIONS_MANIFEST_HANDLER_HELPERS_H_
-
-#include <string>
-
-#include "base/memory/scoped_ptr.h"
-#include "base/strings/string16.h"
-
-class ExtensionIconSet;
-
-namespace base {
-class DictionaryValue;
-}
-
-namespace extensions {
-namespace manifest_handler_helpers {
-
-// Strips leading slashes from the file path. Returns true iff the final path is
-// non empty.
-bool NormalizeAndValidatePath(std::string* path);
-
-// Loads icon paths defined in dictionary |icons_value| into ExtensionIconSet
-// |icons|. |icons_value| is a dictionary value {icon size -> icon path}. Icons
-// in |icons_value| whose size is not in |icon_sizes| will be ignored.
-// Returns success. If load fails, |error| will be set.
-bool LoadIconsFromDictionary(const base::DictionaryValue* icons_value,
-                             const int* icon_sizes,
-                             size_t num_icon_sizes,
-                             ExtensionIconSet* icons,
-                             base::string16* error);
-
-}  // namespace manifest_handler_helpers
-}  // namespace extensions
-
-#endif  // CHROME_COMMON_EXTENSIONS_MANIFEST_HANDLER_HELPERS_H_