Removed NOTIFICATION_BROWSER_CLOSING notification

chrome/browser/ui/browser_list.cc

Index: chrome/browser/ui/browser_list.cc
diff --git a/chrome/browser/ui/browser_list.cc b/chrome/browser/ui/browser_list.cc
index cee9366c92c18bc9af240d1f9aae48b692539cab..91a20c207559b99bfe2cb1cdab29b0b6c2e34193 100644
--- a/chrome/browser/ui/browser_list.cc
+++ b/chrome/browser/ui/browser_list.cc
@@ -249,6 +249,12 @@ void BrowserList::NotifyBrowserNoLongerActive(Browser* browser) {
 }
 
 // static
+void BrowserList::NotifyBrowserCloseStarted(Browser* browser) {
+  for (chrome::BrowserListObserver& observer : observers_.Get())
+    observer.OnBrowserCloseStarted(browser);
+}
+
+// static
 bool BrowserList::IsIncognitoSessionActive() {
   for (auto* browser : *BrowserList::GetInstance()) {
     if (browser->profile()->IsOffTheRecord())