add ValidatedUrl to did-fail-load event

atom/browser/api/atom_api_web_contents.cc

@@ -388,7 +388,7 @@ void WebContents::DidFailProvisionalLoad(
     int error_code,
     const base::string16& error_description,
     bool was_ignored_by_handler) {
-  Emit("did-fail-load", error_code, error_description);
+  Emit("did-fail-load", error_code, error_description, validated_url);
 }
 
 void WebContents::DidFailLoad(content::RenderFrameHost* render_frame_host,
@@ -396,7 +396,7 @@ void WebContents::DidFailLoad(content::RenderFrameHost* render_frame_host,
                               int error_code,
                               const base::string16& error_description,
                               bool was_ignored_by_handler) {
-  Emit("did-fail-load", error_code, error_description);
+  Emit("did-fail-load", error_code, error_description, validated_url);
 }
 
 void WebContents::DidStartLoading() {

atom/renderer/lib/web-view/guest-view-internal.coffee

@@ -6,7 +6,7 @@ requestId = 0
 WEB_VIEW_EVENTS =
   'load-commit': ['url', 'isMainFrame']
   'did-finish-load': []
-  'did-fail-load': ['errorCode', 'errorDescription']
+  'did-fail-load': ['errorCode', 'errorDescription', 'validatedUrl']
   'did-frame-finish-load': ['isMainFrame']
   'did-start-loading': []
   'did-stop-loading': []

docs/api/web-contents.md

@@ -32,6 +32,7 @@ Returns:
 * `event` Event
 * `errorCode` Integer
 * `errorDescription` String
+* `validatedUrl` String
 
 This event is like `did-finish-load` but emitted when the load failed or was
 cancelled, e.g. `window.stop()` is invoked.

docs/api/web-view-tag.md

@@ -384,6 +384,7 @@ Returns:
 
 * `errorCode` Integer
 * `errorDescription` String
+* `validatedUrl` String
 
 This event is like `did-finish-load`, but fired when the load failed or was
 cancelled, e.g. `window.stop()` is invoked.