Add UninstallApp() method to DriveAPIService interface.

chrome/browser/drive/fake_drive_service.h

Index: chrome/browser/drive/fake_drive_service.h
diff --git a/chrome/browser/drive/fake_drive_service.h b/chrome/browser/drive/fake_drive_service.h
index 9a79643284e2c9c40feb049e45f35dcb623c60ef..dd95043d1b6ad1a901138e1b82b2adfebd9f0a1c 100644
--- a/chrome/browser/drive/fake_drive_service.h
+++ b/chrome/browser/drive/fake_drive_service.h
@@ -220,6 +220,9 @@ class FakeDriveService : public DriveServiceInterface {
       const std::string& resource_id,
       const std::string& app_id,
       const google_apis::AuthorizeAppCallback& callback) OVERRIDE;
+  virtual google_apis::CancelCallback UninstallApp(
+      const std::string& app_id,
+      const google_apis::EntryActionCallback& callback) OVERRIDE;
   virtual google_apis::CancelCallback GetResourceListInDirectoryByWapi(
       const std::string& directory_resource_id,
       const google_apis::GetResourceListCallback& callback) OVERRIDE;