[Web Payments] Prettify the payment sheet rows in some states.

chrome/browser/ui/views/payments/payment_request_row_view.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_row_view.h"
 
 #include "chrome/browser/ui/views/payments/payment_request_views_util.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/views/background.h"
 #include "ui/views/border.h"
 
 namespace payments {
 
-PaymentRequestRowView::PaymentRequestRowView(
-    views::ButtonListener* listener)
-  : views::CustomButton(listener) {
+PaymentRequestRowView::PaymentRequestRowView(views::ButtonListener* listener,
+                                             bool clickable)
+    : views::CustomButton(listener), clickable_(clickable) {
+  SetEnabled(clickable_);
   SetBorder(payments::CreatePaymentRequestRowBorder());
 }
 
 PaymentRequestRowView::~PaymentRequestRowView() {}
 
 // views::CustomButton:
 void PaymentRequestRowView::StateChanged(ButtonState old_state) {
-  if (state() == views::Button::STATE_HOVERED ||
-      state() == views::Button::STATE_PRESSED) {
+  if (clickable_ && (state() == views::Button::STATE_HOVERED ||
+                     state() == views::Button::STATE_PRESSED)) {
     set_background(views::Background::CreateSolidBackground(SK_ColorLTGRAY));
   } else {
     set_background(nullptr);
   }
 }
 
 }  // namespace payments