gdata: Introduce GDataWapiFeedLoader class

chrome/browser/chromeos/gdata/gdata_files.cc

Index: chrome/browser/chromeos/gdata/gdata_files.cc
diff --git a/chrome/browser/chromeos/gdata/gdata_files.cc b/chrome/browser/chromeos/gdata/gdata_files.cc
index 86e1556099f64be49851a154c73a069fab01d07b..ee25cfe0d5c32bd9966ca5d8fe4ace47d2e1cd5c 100644
--- a/chrome/browser/chromeos/gdata/gdata_files.cc
+++ b/chrome/browser/chromeos/gdata/gdata_files.cc
@@ -515,6 +515,13 @@ GDataEntry* GDataDirectoryService::FindEntryByPathSync(
   return NULL;
 }
 
+void GDataDirectoryService::FindEntryByPathAndRunSync(
+    const FilePath& search_file_path,
+    const FindEntryCallback& callback) {
+  GDataEntry* entry = FindEntryByPathSync(search_file_path);
+  callback.Run(entry ? GDATA_FILE_OK : GDATA_FILE_ERROR_NOT_FOUND, entry);
+}
+
 GDataEntry* GDataDirectoryService::GetEntryByResourceId(
     const std::string& resource) {
   // GDataFileSystem has already locked.