Introduce a new API to handle native notification clicks

chrome/browser/notifications/notification_display_service.h

Index: chrome/browser/notifications/notification_display_service.h
diff --git a/chrome/browser/notifications/notification_display_service.h b/chrome/browser/notifications/notification_display_service.h
index 6bbd645747f3eecca310333ac705dab6008ad777..84a446b49bda5e4ce71ae921c1077347240325fd 100644
--- a/chrome/browser/notifications/notification_display_service.h
+++ b/chrome/browser/notifications/notification_display_service.h
@@ -8,6 +8,7 @@
 #include <set>
 #include <string>
 #include "base/macros.h"

[Peter Beverloo, 2016/07/05 14:25:34]

nit: blank line above here

[Miguel Garcia, 2016/07/05 17:12:52]

Done.

+#include "chrome/browser/notifications/notification_common.h"
 #include "components/keyed_service/core/keyed_service.h"
 
 class Notification;
@@ -27,11 +28,13 @@ class NotificationDisplayService : public KeyedService {
   ~NotificationDisplayService() override {}
 
   // Displays the |notification| identified by |notification_id|.
-  virtual void Display(const std::string& notification_id,
+  virtual void Display(NotificationCommon::Type notification_type,
+                       const std::string& notification_id,
                        const Notification& notification) = 0;
 
   // Closes the notification identified by |notification_id|.
-  virtual void Close(const std::string& notification_id) = 0;
+  virtual void Close(NotificationCommon::Type notification_type,
+                     const std::string& notification_id) = 0;
 
   // Returns whether the implementation can retrieve a list of currently visible
   // notifications and stores them in |*notification_ids| when possible.