Refresh the password bubble if it's open when the second request comes in.

chrome/browser/ui/cocoa/passwords/passwords_bubble_cocoa_unittest.mm

 // Copyright 2014 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 "chrome/browser/ui/cocoa/passwords/passwords_bubble_cocoa.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/compiler_specific.h"
 #include "base/mac/foundation_util.h"
@@ skipping 159 matching lines @@
   ShowBubble(false);
   EXPECT_TRUE(ManagePasswordsBubbleCocoa::instance());
   EXPECT_TRUE([bubbleWindow() isVisible]);
   EXPECT_TRUE(icon()->active());
 
   icon()->OnChangingState();
   EXPECT_FALSE(ManagePasswordsBubbleCocoa::instance());
   EXPECT_FALSE([bubbleWindow() isVisible]);
 }
 
+TEST_F(ManagePasswordsBubbleCocoaTest, ShowBubbleTwice) {
+  ShowBubble(false);
+  base::scoped_nsobject<NSWindow> bubble([bubbleWindow() retain]);
+  // Opening the bubble again should retrieve the data from the UI controller
+  // again.
+  ShowBubble(false);
+  EXPECT_TRUE(ManagePasswordsBubbleCocoa::instance());
+  EXPECT_NSNE(bubble, bubbleWindow());
+  EXPECT_TRUE([bubbleWindow() isVisible]);
+}
+
 TEST_F(ManagePasswordsBubbleCocoaTest, OpenWithoutFocus) {
   ShowBubble(false);
   EXPECT_TRUE(ManagePasswordsBubbleCocoa::instance());
   EXPECT_FALSE([controller() shouldOpenAsKeyWindow]);
   EXPECT_FALSE([bubbleWindow() defaultButtonCell]);
 }
 
 TEST_F(ManagePasswordsBubbleCocoaTest, OpenWithFocus) {
   ShowBubble(true);
   EXPECT_TRUE(ManagePasswordsBubbleCocoa::instance());
   EXPECT_TRUE([controller() shouldOpenAsKeyWindow]);
   EXPECT_TRUE([bubbleWindow() defaultButtonCell]);
 }