Fix sizing issues in the tab modal signin flow.

chrome/browser/ui/views/profiles/signin_view_controller_delegate_views.h

Index: chrome/browser/ui/views/profiles/signin_view_controller_delegate_views.h
diff --git a/chrome/browser/ui/views/profiles/signin_view_controller_delegate_views.h b/chrome/browser/ui/views/profiles/signin_view_controller_delegate_views.h
index b36c3d93efde785b11fb7e61482c5589a24aa3b0..1b607d5a7658323844d02c060e66bc719c3525ef 100644
--- a/chrome/browser/ui/views/profiles/signin_view_controller_delegate_views.h
+++ b/chrome/browser/ui/views/profiles/signin_view_controller_delegate_views.h
@@ -35,7 +35,8 @@ class SigninViewControllerDelegateViews : public views::DialogDelegateView,
   SigninViewControllerDelegateViews(
       SigninViewController* signin_view_controller,
       views::WebView* content_view,
-      Browser* browser);
+      Browser* browser,
+      bool wait_for_size);
 
   // Creates the web view that contains the signin flow in |mode| using
   // |profile| as the web content's profile, then sets |delegate| as the created
@@ -59,11 +60,16 @@ class SigninViewControllerDelegateViews : public views::DialogDelegateView,
 
  private:
   void PerformClose() override;
+  void ResizeNativeView(int height) override;
+
+  void DisplayModal();
 
   ~SigninViewControllerDelegateViews() override;
 
   views::WebView* content_view_;
   views::Widget* modal_signin_widget_;  // Not owned.
+  bool wait_for_size_;
+  Browser* browser_;
 
   DISALLOW_COPY_AND_ASSIGN(SigninViewControllerDelegateViews);
 };