Avoid multiple displays of the sign-in dialogs.

chrome/browser/ui/cocoa/profiles/signin_view_controller_delegate_mac.h

Index: chrome/browser/ui/cocoa/profiles/signin_view_controller_delegate_mac.h
diff --git a/chrome/browser/ui/cocoa/profiles/signin_view_controller_delegate_mac.h b/chrome/browser/ui/cocoa/profiles/signin_view_controller_delegate_mac.h
index 4823853af5429a8a958fa6975f184825db7f9a0b..f190ae0296a724c8d16d11e1b1922fd0bfbc9480 100644
--- a/chrome/browser/ui/cocoa/profiles/signin_view_controller_delegate_mac.h
+++ b/chrome/browser/ui/cocoa/profiles/signin_view_controller_delegate_mac.h
@@ -86,12 +86,6 @@ class SigninViewControllerDelegateMac : public ConstrainedWindowMacDelegate,
   // The web contents displayed in the constrained window.
   std::unique_ptr<content::WebContents> web_contents_;
   base::scoped_nsobject<ConstrainedWindowCustomWindow> window_;
-
-  // wait_for_size_ stores whether the dialog should only be shown after its
-  // content's size has been laid out and measured so that the constrained
-  // window is sized to the content.
-  bool wait_for_size_;
-
   Browser* browser_;
 
   // The dialog modal presentation type.