DevTools: Fix DefaultFocusedViewStack handling for dialogs.

BUG=392793
R=apavlov, dgozman

Review URL: https://codereview.chromium.org/403493003

git-svn-id: svn://svn.chromium.org/blink/trunk@178372 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/devtools/front_end/ui/Dialog.js

@@ -87,6 +87,11 @@ WebInspector.Dialog.hide = function()
 }
 
 WebInspector.Dialog.prototype = {
+    focus: function()
+    {
+        this._element.focus();
+    },
+
     _hide: function()
     {
         if (this._isHiding)

third_party/WebKit/Source/devtools/front_end/ui/UIUtils.js

@@ -163,7 +163,7 @@ WebInspector.GlassPane.prototype = {
 }
 
 /**
- * @type {!Array.<!WebInspector.View>}
+ * @type {!Array.<!WebInspector.View|!WebInspector.Dialog>}
  */
 WebInspector.GlassPane.DefaultFocusedViewStack = [];