PlzNavigate: Fix ordering of onBeforeNavigate and onCreatedNavigationTarget.

chrome/browser/extensions/api/web_navigation/web_navigation_api_helpers.h

Index: chrome/browser/extensions/api/web_navigation/web_navigation_api_helpers.h
diff --git a/chrome/browser/extensions/api/web_navigation/web_navigation_api_helpers.h b/chrome/browser/extensions/api/web_navigation/web_navigation_api_helpers.h
index db2832c17f69e42cb3db5f3ef51df3a236873092..164d2b58913ae3eeea2a063e995b05efbd1f0dd7 100644
--- a/chrome/browser/extensions/api/web_navigation/web_navigation_api_helpers.h
+++ b/chrome/browser/extensions/api/web_navigation/web_navigation_api_helpers.h
@@ -21,6 +21,8 @@ class GURL;
 
 namespace extensions {
 
+struct Event;
+
 namespace web_navigation_api_helpers {
 
 // Returns the frame ID as it will be passed to the extension:
@@ -29,7 +31,8 @@ namespace web_navigation_api_helpers {
 int GetFrameId(content::RenderFrameHost* frame_host);
 
 // Create and dispatch the various events of the webNavigation API.
-void DispatchOnBeforeNavigate(content::NavigationHandle* navigation_handle);
+std::unique_ptr<Event> CreateOnBeforeNavigateEvent(
+    content::NavigationHandle* navigation_handle);
 
 void DispatchOnCommitted(events::HistogramValue histogram_value,
                          const std::string& event_name,