Merge 88738 - [Chromium] WebNotification should check if ScriptExecutionContext is gone

Source/WebKit/chromium/public/WebNotification.h

Index: Source/WebKit/chromium/public/WebNotification.h
===================================================================
--- Source/WebKit/chromium/public/WebNotification.h	(revision 88742)
+++ Source/WebKit/chromium/public/WebNotification.h	(working copy)
@@ -39,6 +39,10 @@
 namespace WTF { template <typename T> class PassRefPtr; }
 #endif
 
+namespace WTF {
+class AtomicString;
+}
+
 namespace WebKit {
 
 class WebNotificationPrivate;
@@ -104,6 +108,7 @@
 
 private:
     void assign(WebNotificationPrivate*);
+    void dispatchEvent(const WTF::AtomicString& type);
     WebNotificationPrivate* m_private;
 };