[Drive] Add converter from ResourceEntry to FileResource

chrome/browser/drive/drive_api_util.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_BROWSER_DRIVE_DRIVE_API_UTIL_H_
 #define CHROME_BROWSER_DRIVE_DRIVE_API_UTIL_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/google_apis/drive_common_callbacks.h"
 #include "chrome/browser/google_apis/gdata_errorcode.h"
 
 class GURL;
 
 namespace base {
 class Value;
 }  // namespace base
 
+namespace google_apis {
+class FileResource;
+class ResourceEntry;
+}  // namespace google_apis
+
 namespace drive {
 namespace util {
 
 // Returns true if Drive v2 API is enabled via commandline switch.
 bool IsDriveV2ApiEnabled();
 
 // Escapes ' to \' in the |str|. This is designed to use for string value of
 // search parameter on Drive API v2.
 // See also: https://developers.google.com/drive/search-parameters
 std::string EscapeQueryStringValue(const std::string& str);
@@ skipping 25 matching lines @@
 // OAuth2 scopes for the GData WAPI.
 extern const char kDocsListScope[];
 extern const char kDriveAppsScope[];
 
 // Extracts an url to the sharing dialog and returns it via |callback|. If
 // the share url doesn't exist, then an empty url is returned.
 void ParseShareUrlAndRun(const google_apis::GetShareUrlCallback& callback,
                          google_apis::GDataErrorCode error,
                          scoped_ptr<base::Value> value);
 
+// Converts ResourceEntry to FileResource.
+scoped_ptr<google_apis::FileResource>
+ConvertResourceEntryToFileResource(const google_apis::ResourceEntry& entry);
+
 // The resource ID for the root directory for WAPI is defined in the spec:
 // https://developers.google.com/google-apps/documents-list/
 extern const char kWapiRootDirectoryResourceId[];
 
 }  // namespace util
 }  // namespace drive
 
 #endif  // CHROME_BROWSER_DRIVE_DRIVE_API_UTIL_H_