Integrate the notification database with the normal code path.

chrome/browser/notifications/notification_ui_manager_android.h

Index: chrome/browser/notifications/notification_ui_manager_android.h
diff --git a/chrome/browser/notifications/notification_ui_manager_android.h b/chrome/browser/notifications/notification_ui_manager_android.h
index e7681bbdbb618412375146322c0d1bf947387769..2a9c44484d057455e50be05aac4ffe7f69529b8e 100644
--- a/chrome/browser/notifications/notification_ui_manager_android.h
+++ b/chrome/browser/notifications/notification_ui_manager_android.h
@@ -22,16 +22,19 @@ class NotificationUIManagerAndroid : public NotificationUIManager {
   NotificationUIManagerAndroid();
   ~NotificationUIManagerAndroid() override;
 
-  // Called by the Java implementation when a notification has been clicked on.
+  // Called by the Java implementation when the notification has been clicked.
   bool OnNotificationClicked(JNIEnv* env,
                              jobject java_object,
-                             jstring notification_id,
-                             jbyteArray serialized_notification_data);
+                             jlong persistent_notification_id,
+                             jstring java_origin,
+                             jstring java_tag);
 
-  // Called by the Java implementation when a notification has been closed.
+  // Called by the Java implementation when the notification has been closed.
   bool OnNotificationClosed(JNIEnv* env,
                             jobject java_object,
-                            jstring notification_id);
+                            jlong persistent_notification_id,
+                            jstring java_origin,
+                            jstring java_tag);
 
   // NotificationUIManager implementation;
   void Add(const Notification& notification, Profile* profile) override;
@@ -75,11 +78,11 @@ class NotificationUIManagerAndroid : public NotificationUIManager {
   // Map from a notification id to the associated ProfileNotification*.
   std::map<std::string, ProfileNotification*> profile_notifications_;
 
-  // Holds the tag of a notification, and its origin.
+  // Pair containing a regenerated notification's origin and tag.

[dewittj, 2015/04/10 17:02:19]

Can you add comments around what a "regenerated notification" is and what its
use is?

[Peter Beverloo, 2015/04/13 16:22:32]

Done.

   using RegeneratedNotificationInfo = std::pair<std::string, std::string>;
 
-  // Map from notification id to RegeneratedNotificationInfo.
-  std::map<std::string, RegeneratedNotificationInfo>
+  // Map from persistent notification id to RegeneratedNotificationInfo.
+  std::map<int64_t, RegeneratedNotificationInfo>
       regenerated_notification_infos_;
 
   base::android::ScopedJavaGlobalRef<jobject> java_object_;