[Extensions] Convert some ChromeSyncExtensionFunctions

chrome/browser/chromeos/extensions/file_manager/private_api_drive.h

Index: chrome/browser/chromeos/extensions/file_manager/private_api_drive.h
diff --git a/chrome/browser/chromeos/extensions/file_manager/private_api_drive.h b/chrome/browser/chromeos/extensions/file_manager/private_api_drive.h
index 9bde9a3d12d52f0287ccbd93ba6f6f1a0e573b08..464b7b6f20b21fc00e41ba157ee03aef9554a011 100644
--- a/chrome/browser/chromeos/extensions/file_manager/private_api_drive.h
+++ b/chrome/browser/chromeos/extensions/file_manager/private_api_drive.h
@@ -170,7 +170,7 @@ class FileManagerPrivateSearchDriveMetadataFunction
 
 // Implements the chrome.fileManagerPrivate.getDriveConnectionState method.
 class FileManagerPrivateGetDriveConnectionStateFunction
-    : public ChromeSyncExtensionFunction {
+    : public UIThreadExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION(
       "fileManagerPrivate.getDriveConnectionState",
@@ -179,7 +179,7 @@ class FileManagerPrivateGetDriveConnectionStateFunction
  protected:
   ~FileManagerPrivateGetDriveConnectionStateFunction() override {}
 
-  bool RunSync() override;
+  ResponseAction Run() override;
 };
 
 // Implements the chrome.fileManagerPrivate.requestAccessToken method.