[Web Payments] Implement the CVC Unmask dialog.

chrome/browser/ui/views/payments/payment_request_sheet_controller.cc

 // Copyright 2017 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/payments/payment_request_sheet_controller.h"
 
 #include "chrome/browser/ui/views/payments/payment_request_dialog_view.h"
 #include "chrome/browser/ui/views/payments/payment_request_dialog_view_ids.h"
 #include "chrome/browser/ui/views/payments/payment_request_views_util.h"
 #include "components/payments/content/payment_request.h"
@@ skipping 93 matching lines @@
   layout->StartRow(1, 0);
   // |content_view| will go into a views::ScrollView so it needs to be sized now
   // otherwise it'll be sized to the ScrollView's viewport height, preventing
   // the scroll bar from ever being shown.
   views::View* pane = new views::View;
   views::GridLayout* pane_layout = new views::GridLayout(pane);
   views::ColumnSet* pane_columns = pane_layout->AddColumnSet(0);
   pane_columns->AddColumn(
       views::GridLayout::Alignment::FILL, views::GridLayout::Alignment::LEADING,
       0, views::GridLayout::SizeType::FIXED, kDialogWidth, kDialogWidth);
+

[Mathieu, 2017/04/04 19:05:48]

we could revert this line and thus file

[anthonyvd, 2017/04/04 23:02:14]

Good catch, done.

   pane->SetLayoutManager(pane_layout);
   pane_layout->StartRow(0, 0);
   pane_layout->AddView(content_view_);
   pane->SizeToPreferredSize();
 
   std::unique_ptr<views::ScrollView> scroll =
       base::MakeUnique<views::ScrollView>();
   scroll->EnableViewPortLayer();
   scroll->set_hide_horizontal_scrollbar(true);
   scroll->SetContents(pane);
@@ skipping 48 matching lines @@
   button->set_tag(static_cast<int>(PaymentRequestCommonTags::CLOSE_BUTTON_TAG));
   button->set_id(static_cast<int>(DialogViewID::CANCEL_BUTTON));
   trailing_buttons_container->AddChildView(button);
 
   layout->AddView(trailing_buttons_container.release());
 
   return container;
 }
 
 }  // namespace payments