Warn web developers that card networks as method names are deprecated.

third_party/WebKit/Source/core/frame/Deprecation.cpp

 // 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.
 
 #include "core/frame/Deprecation.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/frame/FrameConsole.h"
 #include "core/frame/LocalFrame.h"
 #include "core/inspector/ConsoleMessage.h"
 #include "core/page/Page.h"
 #include "core/workers/WorkerOrWorkletGlobalScope.h"
 
 namespace {
 
 enum Milestone {
   M59,
   M60,
   M61,
   M62,
+  M63,
+  M64,
 };
 
 const char* milestoneString(Milestone milestone) {
   // These are the Estimated Stable Dates:
   // https://www.chromium.org/developers/calendar
 
   switch (milestone) {
     case M59:
       return "M59, around June 2017";
     case M60:
       return "M60, around August 2017";
     case M61:
       return "M61, around September 2017";
     case M62:
       return "M62, around October 2017";
+    case M63:
+      return "M63, around December 2017";
+    case M64:
+      return "M64, around January 2018";
   }
 
   NOTREACHED();
   return nullptr;
 }
 
 String replacedBy(const char* feature, const char* replacement) {
   return String::Format("%s is deprecated. Please use %s instead.", feature,
                         replacement);
 }
@@ skipping 371 matching lines @@
     case UseCounter::kCredentialManagerAdditionalData:
     case UseCounter::kCredentialManagerCustomFetch:
       return String::Format(
           "Passing 'PasswordCredential' objects into 'fetch(..., { "
           "credentials: ... })' is deprecated, and will be removed in %s. See "
           "https://www.chromestatus.com/features/5689327799500800 for more "
           "details and https://www.chromium.org/developers/"
           "recent-changes-credential-management-api for migration suggestions.",
           milestoneString(M62));
 
+    case UseCounter::kPaymentRequestNetworkNameInSupportedMethods:
+      return replacedWillBeRemoved(
+          "Card issuer network (\"amex\", \"diners\", \"discover\", \"jcb\", "
+          "\"mastercard\", \"mir\", \"unionpay\", \"visa\") as payment method",
+          "payment method name \"basic-card\" with issuer network in the "
+          "\"supportedNetworks\" field",
+          M64, "5725727580225536");
+
     // Features that aren't deprecated don't have a deprecation message.
     default:
       return String();
   }
 }
 
 }  // namespace blink