Fix user agent override restore pipeline

content/browser/web_contents/web_contents_impl.cc

Index: content/browser/web_contents/web_contents_impl.cc
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index d5a09dcbb874a55aa40e394cedb5f2975d3edf94..cd97529f293bb7265e0bd6019e15a770b5534f8c 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -793,6 +793,12 @@ void WebContentsImpl::SetUserAgentOverride(const std::string& override) {
   NavigationEntry* entry = controller_.GetActiveEntry();
   if (is_loading_ && entry != NULL && entry->GetIsOverridingUserAgent())
     controller_.ReloadIgnoringCache(true);
+
+  // Send out a notification that the user agent override was changed.
+  content::NotificationService::current()->Notify(
+      content::NOTIFICATION_WEB_CONTENTS_USER_AGENT_OVERRIDE_CHANGED,
+      content::Source<WebContents>(this),
+      content::NotificationService::NoDetails());
 }
 
 const std::string& WebContentsImpl::GetUserAgentOverride() const {