[DevTools] Fix WebInspector.reload regressed in r185127.

BUG=431697

Review URL: https://codereview.chromium.org/733473002

git-svn-id: svn://svn.chromium.org/blink/trunk@185376 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/devtools/front_end/main/Main.js

@@ -611,7 +611,7 @@ WebInspector.Main.prototype = {
 WebInspector.reload = function()
 {
     InspectorAgent.reset();
-    window.location.reload();
+    window.top.location.reload();
 }
 
 /**