Add priority to Notification & NotificationOptions.

Source/modules/notifications/Notification.h

Index: Source/modules/notifications/Notification.h
diff --git a/Source/modules/notifications/Notification.h b/Source/modules/notifications/Notification.h
index 31735bfc09638301e01ed1731ef34223e6263b7f..2ada9429b19a25d506e4a7f53a38100395139dc9 100644
--- a/Source/modules/notifications/Notification.h
+++ b/Source/modules/notifications/Notification.h
@@ -44,6 +44,7 @@
 #include "platform/weborigin/KURL.h"
 #include "public/platform/WebVector.h"
 #include "public/platform/modules/notifications/WebNotificationAction.h"
+#include "public/platform/modules/notifications/WebNotificationData.h"
 #include "public/platform/modules/notifications/WebNotificationDelegate.h"
 #include "public/platform/modules/notifications/WebNotificationPermission.h"
 #include "wtf/PassOwnPtr.h"
@@ -93,6 +94,7 @@ public:
     String lang() const { return m_lang; }
     String body() const { return m_body; }
     String tag() const { return m_tag; }
+    String priority() const { return m_priority; }
     String icon() const { return m_iconUrl; }
     const NavigatorVibration::VibrationPattern& vibrate(bool& isNull) const;
     bool silent() const { return m_silent; }
@@ -108,6 +110,8 @@ public:
     static WebNotificationPermission checkPermission(ExecutionContext*);
     static ScriptPromise requestPermission(ScriptState*, NotificationPermissionCallback*);
 
+    static WebNotificationData::Priority priorityEnum(const String& priority);
+
     static size_t maxActions();
 
     static void actionsToWebActions(const HeapVector<NotificationAction>& actions, WebVector<WebNotificationAction>* webActions);
@@ -127,6 +131,8 @@ protected:
     bool dispatchEventInternal(PassRefPtrWillBeRawPtr<Event>) final;
 
 private:
+    static String priorityString(WebNotificationData::Priority);
+
     static void webActionsToActions(const WebVector<WebNotificationAction>& webActions, HeapVector<NotificationAction>* actions);
 
     Notification(const String& title, ExecutionContext*);
@@ -145,6 +151,7 @@ private:
     void setBody(const String& body) { m_body = body; }
     void setIconUrl(KURL iconUrl) { m_iconUrl = iconUrl; }
     void setTag(const String& tag) { m_tag = tag; }
+    void setPriority(const String& priority) { m_priority = priority; }
     void setVibrate(const NavigatorVibration::VibrationPattern& vibrate) { m_vibrate = vibrate; }
     void setSilent(bool silent) { m_silent = silent; }
     void setSerializedData(PassRefPtr<SerializedScriptValue> data) { m_serializedData = data; }
@@ -157,6 +164,7 @@ private:
     String m_lang;
     String m_body;
     String m_tag;
+    String m_priority;

[Peter Beverloo, 2015/08/03 16:41:59]

I don't like having enum values stored as strings.

[johnme, 2015/08/03 16:58:48]

Acknowledged.

     NavigatorVibration::VibrationPattern m_vibrate;
     bool m_silent;
     RefPtr<SerializedScriptValue> m_serializedData;