Fix DCHECK when opening two password bubbles one after another.

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

Index: chrome/browser/ui/cocoa/passwords/passwords_bubble_cocoa.mm
diff --git a/chrome/browser/ui/cocoa/passwords/passwords_bubble_cocoa.mm b/chrome/browser/ui/cocoa/passwords/passwords_bubble_cocoa.mm
index edd89415c1601562f9d4260a267864059f77be7c..8c871a9b6d9b6df94372684c5ac80731118dc133 100644
--- a/chrome/browser/ui/cocoa/passwords/passwords_bubble_cocoa.mm
+++ b/chrome/browser/ui/cocoa/passwords/passwords_bubble_cocoa.mm
@@ -45,7 +45,6 @@ ManagePasswordsBubbleCocoa::ManagePasswordsBubbleCocoa(
     ManagePasswordsIcon* icon)
     : model_(webContents, displayReason),
       icon_(icon),
-      closing_(false),
       controller_(nil),
       webContents_(webContents),
       bridge_(nil) {
@@ -88,11 +87,17 @@ void ManagePasswordsBubbleCocoa::Show(bool user_action) {
            object:[controller_ window]];
 }
 
-void ManagePasswordsBubbleCocoa::Close() {
-  if (!closing_) {
-    closing_ = true;
-    [controller_ close];
+void ManagePasswordsBubbleCocoa::Close(bool no_animation) {
+  if (no_animation) {
+    InfoBubbleWindow* window = base::mac::ObjCCastStrict<InfoBubbleWindow>(
+        [controller_ window]);
+    [window setAllowedAnimations:info_bubble::kAnimateNone];
   }
+  [controller_ close];
+}
+
+void ManagePasswordsBubbleCocoa::Close() {
+  Close(false);
 }
 
 void ManagePasswordsBubbleCocoa::OnClose() {
@@ -105,10 +110,7 @@ void ManagePasswordsBubbleCocoa::Show(content::WebContents* webContents,
   if (bubble_) {
     // The bubble is currently shown. It's to be reopened with the new content.
     // 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();
+    bubble_->Close(true);
   }
   DCHECK(!bubble_);