Index: chrome/browser/search/one_google_bar/one_google_bar_service_observer.h |
diff --git a/chrome/browser/search/one_google_bar/one_google_bar_service_observer.h b/chrome/browser/search/one_google_bar/one_google_bar_service_observer.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..c3327ee5f404ea54bd5a210c44a5d26135e92963 |
--- /dev/null |
+++ b/chrome/browser/search/one_google_bar/one_google_bar_service_observer.h |
@@ -0,0 +1,20 @@ |
+// Copyright 2017 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_SEARCH_ONE_GOOGLE_BAR_ONE_GOOGLE_BAR_SERVICE_OBSERVER_H_ |
+#define CHROME_BROWSER_SEARCH_ONE_GOOGLE_BAR_ONE_GOOGLE_BAR_SERVICE_OBSERVER_H_ |
+ |
+#include "base/optional.h" |
+ |
+struct OneGoogleBarData; |
+ |
+// Observer for OneGoogleBarService. Gets notified when the OneGoogleBarData |
+// changes. |
+class OneGoogleBarServiceObserver { |
+ public: |
+ virtual void OnOneGoogleBarDataChanged( |
+ const base::Optional<OneGoogleBarData>& data) = 0; |
sfiera
2017/04/13 15:18:31
Since the service provides an accessor, I would be
Marc Treib
2017/04/13 15:44:02
Hm. I do like the idea of "one way to get the valu
sfiera
2017/04/13 15:58:33
Passing nothing would be a lot less convenient, si
Marc Treib
2017/04/13 16:45:15
Eeh, in my experience most observers need to keep
|
+}; |
+ |
+#endif // CHROME_BROWSER_SEARCH_ONE_GOOGLE_BAR_ONE_GOOGLE_BAR_SERVICE_OBSERVER_H_ |