Send an webNavigation event for navigations triggered by window.history

chrome/test/data/extensions/api_test/webnavigation/framework.js

Index: chrome/test/data/extensions/api_test/webnavigation/framework.js
diff --git a/chrome/test/data/extensions/api_test/webnavigation/framework.js b/chrome/test/data/extensions/api_test/webnavigation/framework.js
index f2edf0d86f1475d50ea972533e2a78995dbe7280..eae8f7162b08a872678b1c05fe05471dc6985593 100644
--- a/chrome/test/data/extensions/api_test/webnavigation/framework.js
+++ b/chrome/test/data/extensions/api_test/webnavigation/framework.js
@@ -167,6 +167,10 @@ function initListeners() {
       function(details) {
     captureEvent("onTabReplaced", details);
   });
+  chrome.webNavigation.onHistoryStateUpdated.addListener(
+      function(details) {
+    captureEvent("onHistoryStateUpdated", details);
+  });
 }
 
 // Returns the usual order of navigation events.