[Web Payments] Add Cancel button to all sheets

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

Index: chrome/browser/ui/views/payments/payment_request_views_util.cc
diff --git a/chrome/browser/ui/views/payments/payment_request_views_util.cc b/chrome/browser/ui/views/payments/payment_request_views_util.cc
index 2c8e2dd5e55f77366b448054f95a2dd89d637f6d..e48f5c33f50fe5b71cd8f1fbdf4004bd7dff9ffe 100644
--- a/chrome/browser/ui/views/payments/payment_request_views_util.cc
+++ b/chrome/browser/ui/views/payments/payment_request_views_util.cc
@@ -14,7 +14,9 @@
 #include "components/autofill/core/browser/autofill_profile.h"
 #include "components/autofill/core/browser/autofill_type.h"
 #include "components/autofill/core/browser/field_types.h"
+#include "components/strings/grit/components_strings.h"
 #include "third_party/skia/include/core/SkColor.h"
+#include "ui/base/l10n/l10n_util.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/geometry/insets.h"
 #include "ui/gfx/geometry/point_f.h"
@@ -23,9 +25,11 @@
 #include "ui/views/border.h"
 #include "ui/views/bubble/bubble_frame_view.h"
 #include "ui/views/controls/button/button.h"
+#include "ui/views/controls/button/md_text_button.h"
 #include "ui/views/controls/button/vector_icon_button.h"
 #include "ui/views/controls/label.h"
 #include "ui/views/controls/styled_label.h"
+#include "ui/views/layout/box_layout.h"
 #include "ui/views/layout/grid_layout.h"
 #include "ui/views/painter.h"
 #include "ui/views/view.h"
@@ -118,7 +122,8 @@ std::unique_ptr<views::View> CreateSheetHeaderView(
 
 std::unique_ptr<views::View> CreatePaymentView(
     std::unique_ptr<views::View> header_view,
-    std::unique_ptr<views::View> content_view) {
+    std::unique_ptr<views::View> content_view,
+    std::unique_ptr<views::View> buttons_view) {
   std::unique_ptr<views::View> view = base::MakeUnique<views::View>();
   view->set_background(views::Background::CreateSolidBackground(SK_ColorWHITE));
 
@@ -144,6 +149,10 @@ std::unique_ptr<views::View> CreatePaymentView(
   // |content_view| will be deleted when |view| is.
   layout->AddView(content_view.release());
 
+  layout->AddPaddingRow(1, 0);
+  layout->StartRow(0, 0);
+  layout->AddView(buttons_view.release());
+
   return view;
 }
 
@@ -221,4 +230,48 @@ std::unique_ptr<views::Border> CreatePaymentRequestRowBorder() {
       gfx::Insets());
 }
 
+std::unique_ptr<views::View> CreateButtonsView(
+    PaymentRequestSheetController* controller) {
+  std::unique_ptr<views::View> container = base::MakeUnique<views::View>();
+
+  views::GridLayout* layout = new views::GridLayout(container.get());
+  container->SetLayoutManager(layout);
+
+  views::ColumnSet* columns = layout->AddColumnSet(0);
+  columns->AddColumn(views::GridLayout::LEADING, views::GridLayout::CENTER,
+                     0, views::GridLayout::USE_PREF, 0, 0);
+  columns->AddPaddingColumn(1, 0);
+  columns->AddColumn(views::GridLayout::TRAILING, views::GridLayout::CENTER,
+                     0, views::GridLayout::USE_PREF, 0, 0);
+
+  layout->StartRow(0, 0);
+  std::unique_ptr<views::View> leading_buttons_container =
+      base::MakeUnique<views::View>();
+
+  // TODO(anthonyvd): Add the other buttons that can eventually go into this
+  // footer.
+
+  layout->AddView(leading_buttons_container.release());
+
+  std::unique_ptr<views::View> trailing_buttons_container =
+      base::MakeUnique<views::View>();
+
+  constexpr int kButtonSpacing = 10;
+  trailing_buttons_container->SetLayoutManager(new views::BoxLayout(
+      views::BoxLayout::kHorizontal,
+      kPaymentRequestRowHorizontalInsets,
+      kPaymentRequestRowVerticalInsets,
+      kButtonSpacing));
+
+  views::LabelButton* button = views::MdTextButton::CreateSecondaryUiButton(
+      controller,
+      l10n_util::GetStringUTF16(IDS_PAYMENT_REQUEST_CANCEL_BUTTON_LABEL));
+  button->set_tag(static_cast<int>(PaymentRequestCommonTags::CLOSE_BUTTON_TAG));
+  trailing_buttons_container->AddChildView(button);
+
+  layout->AddView(trailing_buttons_container.release());
+
+  return container;
+}
+
 }  // namespace payments