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

chrome/browser/ui/cocoa/passwords/passwords_bubble_cocoa.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.
 
 #import "chrome/browser/ui/cocoa/passwords/passwords_bubble_cocoa.h"
 
+#include "base/mac/foundation_util.h"
 #include "base/mac/scoped_block.h"
 #include "chrome/browser/ui/browser_finder.h"
 #import "chrome/browser/ui/cocoa/browser_window_controller.h"
+#import "chrome/browser/ui/cocoa/info_bubble_window.h"
 #include "chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.h"
 #include "chrome/browser/ui/cocoa/location_bar/manage_passwords_decoration.h"
 #import "chrome/browser/ui/cocoa/passwords/passwords_bubble_controller.h"
 #include "chrome/browser/ui/passwords/manage_passwords_icon.h"
 #include "content/public/browser/web_contents.h"
 
 typedef void (^Callback)(void);
 
 @interface ManagePasswordsBubbleCocoaNotificationBridge : NSObject {
   base::mac::ScopedBlock<Callback> callback_;
@@ skipping 73 matching lines @@
   }
 }
 
 void ManagePasswordsBubbleCocoa::OnClose() {
   delete this;
 }
 
 // static
 void ManagePasswordsBubbleCocoa::Show(content::WebContents* webContents,
                                       bool user_action) {
-  if (bubble_ && (bubble_->webContents_ != webContents)) {
-    // The bubble is currently shown for some other tab. We should close it now
-    // and open for |webContents|.
+  if (bubble_) {
+    // The bubble is currently shown it should be reopened with the new content.

[vabr (Chromium), 2016/05/30 08:36:41]

nit: Split the sentence between "shown it"?
...currently shown. It should ...

[vasilii, 2016/05/30 08:43:02]

Done.

+    // Disable closing animation so that it's destroyed immediately.
+    InfoBubbleWindow* window = base::mac::ObjCCastStrict<InfoBubbleWindow>(
+        [bubble_->controller_ window]);
+    [window setAllowedAnimations:info_bubble::kAnimateNone];
     bubble_->Close();
   }
-  if (bubble_)
-    return;
+  DCHECK(!bubble_);
 
   NSWindow* window = [webContents->GetNativeView() window];
   if (!window) {
     // The tab isn't active right now.
     return;
   }
   BrowserWindowController* bwc =
       [BrowserWindowController browserWindowControllerForWindow:window];
   bubble_ = new ManagePasswordsBubbleCocoa(
       webContents, user_action ? ManagePasswordsBubbleModel::USER_ACTION
                                : ManagePasswordsBubbleModel::AUTOMATIC,
       [bwc locationBarBridge]->manage_passwords_decoration()->icon());
 
   bubble_->Show(user_action);
 }