Hide the password bubble when the underlying ManagePasswordsUIController changes its state.

chrome/browser/ui/cocoa/location_bar/manage_passwords_decoration.h

Index: chrome/browser/ui/cocoa/location_bar/manage_passwords_decoration.h
diff --git a/chrome/browser/ui/cocoa/location_bar/manage_passwords_decoration.h b/chrome/browser/ui/cocoa/location_bar/manage_passwords_decoration.h
index fb23053286629d65b136041c52aa46590374192f..e43b6df9ee2388826c3260a956ceee1ec08408d5 100644
--- a/chrome/browser/ui/cocoa/location_bar/manage_passwords_decoration.h
+++ b/chrome/browser/ui/cocoa/location_bar/manage_passwords_decoration.h
@@ -23,6 +23,7 @@ class ManagePasswordsIconCocoa : public ManagePasswordsIcon {
   ManagePasswordsIconCocoa(ManagePasswordsDecoration* decoration);
   virtual ~ManagePasswordsIconCocoa();
   void UpdateVisibleUI() override;
+  void OnChangingState() override;
 
   int icon_id() { return icon_id_; }
   int tooltip_text_id() { return tooltip_text_id_; }
@@ -48,6 +49,9 @@ class ManagePasswordsDecoration : public ImageDecoration {
   // Updates the decoration according to icon state changes.
   void UpdateVisibleUI();
 
+  // Closes the bubble if it's currently displayed.
+  void HideBubble();
+
   // Accessor for the platform-independent interface.
   ManagePasswordsIconCocoa* icon() { return icon_.get(); }