Change sign-in dialogs to be browser modal.

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

 // Copyright 2016 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.
 
 #include "chrome/browser/ui/views/profiles/signin_view_controller_delegate_views.h"
 
 #include "base/macros.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_avatar_icon_util.h"
 #include "chrome/browser/signin/signin_promo.h"
@@ skipping 56 matching lines @@
 const views::Widget* SigninViewControllerDelegateViews::GetWidget() const {
   return content_view_->GetWidget();
 }
 
 void SigninViewControllerDelegateViews::DeleteDelegate() {
   ResetSigninViewControllerDelegate();
   delete this;
 }
 
 ui::ModalType SigninViewControllerDelegateViews::GetModalType() const {
-  return ui::MODAL_TYPE_CHILD;
+  return ui::MODAL_TYPE_WINDOW;
 }
 
 bool SigninViewControllerDelegateViews::ShouldShowCloseButton() const {
   return false;
 }
 
 int SigninViewControllerDelegateViews::GetDialogButtons() const {
   return ui::DIALOG_BUTTON_NONE;
 }
 
@@ skipping 12 matching lines @@
   content_view_->Layout();
 
   if (wait_for_size_) {
     // The modal wasn't displayed yet so just show it with the already resized
     // view.
     DisplayModal();
   }
 }
 
 void SigninViewControllerDelegateViews::DisplayModal() {
-  modal_signin_widget_ = constrained_window::ShowWebModalDialogViews(
-      this, browser_->tab_strip_model()->GetActiveWebContents());
-  content_view_->RequestFocus();
+  gfx::NativeWindow window = browser_->tab_strip_model()
+                                 ->GetActiveWebContents()
+                                 ->GetTopLevelNativeWindow();
+  modal_signin_widget_ =
+      constrained_window::CreateBrowserModalDialogViews(this, window);
+  modal_signin_widget_->Show();
 }
 
 // static
 std::unique_ptr<views::WebView>
 SigninViewControllerDelegateViews::CreateGaiaWebView(
     content::WebContentsDelegate* delegate,
     profiles::BubbleViewMode mode,
     Browser* browser,
     signin_metrics::AccessPoint access_point) {
   GURL url =
@@ skipping 84 matching lines @@
 
 SigninViewControllerDelegate*
 SigninViewControllerDelegate::CreateSigninErrorDelegate(
     SigninViewController* signin_view_controller,
     Browser* browser) {
   return new SigninViewControllerDelegateViews(
       signin_view_controller,
       SigninViewControllerDelegateViews::CreateSigninErrorWebView(browser),
       browser, true);
 }