Fixes focus traversal bug

ui/views/widget/widget.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/views/widget/widget.h"
 
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 68 matching lines @@
   // Overridden from WidgetDelegate:
   virtual void DeleteDelegate() OVERRIDE {
     delete this;
   }
   virtual Widget* GetWidget() OVERRIDE {
     return widget_;
   }
   virtual const Widget* GetWidget() const OVERRIDE {
     return widget_;
   }
-
   virtual bool CanActivate() const OVERRIDE {
     return can_activate_;
   }
+  virtual bool ShouldAdvanceFocusToTopLevelWidget() const OVERRIDE {
+    // In most situations where a Widget is used without a delegate the Widget
+    // is used as a container, so that we want focus to advance to the top-level
+    // widget. A good example of this is the find bar.
+    return true;
+  }
 
  private:
   Widget* widget_;
   bool can_activate_;
 
   DISALLOW_COPY_AND_ASSIGN(DefaultWidgetDelegate);
 };
 
 ////////////////////////////////////////////////////////////////////////////////
 // Widget, InitParams:
@@ skipping 1324 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // internal::NativeWidgetPrivate, NativeWidget implementation:
 
 internal::NativeWidgetPrivate* NativeWidgetPrivate::AsNativeWidgetPrivate() {
   return this;
 }
 
 }  // namespace internal
 }  // namespace views