PaymentApp: Add classes for supporting Web Based Payment Apps

chrome/common/chrome_switches.cc

 // Copyright (c) 2012 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/common/chrome_switches.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 #include "build/build_config.h"
 #include "ppapi/features/features.h"
@@ skipping 427 matching lines @@
 // Enables the QUIC protocol.  This is a temporary testing flag.
 const char kEnableQuic[] = "enable-quic";
 
 // Enable use of Chromium's port selection for the ephemeral port via bind().
 // This only has an effect if the QUIC protocol is enabled.
 const char kEnableQuicPortSelection[] = "enable-quic-port-selection";
 
 // Switches 'Save as...' context and app menu labels to 'Download...'.
 const char kEnableSaveAsMenuLabelExperiment[] = "saveas-menu-label";
 
+// Enable support for service-worker based payment apps as defined by w3c here:
+// https://w3c.github.io/webpayments-payment-apps-api/
+const char kEnableServiceWorkerPaymentApps[] =
+    "enable-service-worker-payment-apps";
+
 // Enable settings in a separate browser window per profile
 // (see SettingsWindowEnabled() below).
 const char kEnableSettingsWindow[]           = "enable-settings-window";
 
 // Enable the Site Engagement App Banner which triggers app install banners
 // using the site engagement service rather than a navigation-based heuristic.
 // Implicitly enables the site engagement service.
 const char kEnableSiteEngagementAppBanner[] =
     "enable-site-engagement-app-banner";
 
@@ skipping 860 matching lines @@
 
 // -----------------------------------------------------------------------------
 // DO NOT ADD YOUR VERY NICE FLAGS TO THE BOTTOM OF THIS FILE.
 //
 // You were going to just dump your switches here, weren't you? Instead, please
 // put them in alphabetical order above, or in order inside the appropriate
 // ifdef at the bottom. The order should match the header.
 // -----------------------------------------------------------------------------
 
 }  // namespace switches