[Merge M-55] Disable Web Payments in WebView

android_webview/browser/command_line_helper.h

 // 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.
 
 #ifndef ANDROID_WEBVIEW_BROWSER_COMMAND_LINE_HELPER_H_
 #define ANDROID_WEBVIEW_BROWSER_COMMAND_LINE_HELPER_H_
 
 #include <string>
 
 #include "base/macros.h"
 
 namespace base {
 class CommandLine;
 }  // namespace base
 
 class CommandLineHelper {
  public:
   // Add a feature to the --enabled-features list, but only if it's not
   // already enabled or disabled.
   static void AddEnabledFeature(base::CommandLine& command_line,
                                 const std::string& feature_name);
 
+  // Add a feature to the --disabled-features list, but only if it's not already
+  // enabled or disabled.
+  static void AddDisabledFeature(base::CommandLine& command_line,
+                                 const std::string& feature_name);
+
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(CommandLineHelper);
 };
 
 #endif  // ANDROID_WEBVIEW_BROWSER_COMMAND_LINE_HELPER_H_