gdata: Add GDataDirectoryService::GetEntryInfoByResourceId()

chrome/browser/chromeos/gdata/gdata_directory_service.cc

Index: chrome/browser/chromeos/gdata/gdata_directory_service.cc
diff --git a/chrome/browser/chromeos/gdata/gdata_directory_service.cc b/chrome/browser/chromeos/gdata/gdata_directory_service.cc
index 54fcfecd49fe2bba50adb4a54466d68cf2dc7aa7..df0192249c344edec92e59b8fe7f9e9e6b4b4c1b 100644
--- a/chrome/browser/chromeos/gdata/gdata_directory_service.cc
+++ b/chrome/browser/chromeos/gdata/gdata_directory_service.cc
@@ -326,6 +326,29 @@ void GDataDirectoryService::GetEntryByResourceIdAsync(
   callback.Run(entry);
 }
 
+void GDataDirectoryService::GetEntryInfoByResourceId(
+      const std::string& resource_id,
+      const GetEntryInfoCallback& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK(!callback.is_null());
+
+  scoped_ptr<GDataEntryProto> entry_proto;
+  GDataFileError error = GDATA_FILE_ERROR_FAILED;
+
+  GDataEntry* entry = GetEntryByResourceId(resource_id);
+  if (entry) {
+    entry_proto.reset(new GDataEntryProto);
+    entry->ToProtoFull(entry_proto.get());
+    error = GDATA_FILE_OK;
+  } else {
+    error = GDATA_FILE_ERROR_NOT_FOUND;
+  }
+
+  base::MessageLoopProxy::current()->PostTask(
+      FROM_HERE,
+      base::Bind(callback, error, base::Passed(&entry_proto)));
+}
+
 void GDataDirectoryService::GetEntryInfoByPath(
     const FilePath& path,
     const GetEntryInfoCallback& callback) {