Mojo: Change the blink variant from "wtf" to "blink".

third_party/WebKit/public/BUILD.gn

 # Copyright 2014 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.
 
 import("//mojo/public/tools/bindings/mojom.gni")
 import("//third_party/WebKit/Source/config.gni")
 import("//tools/grit/grit_rule.gni")
 
 blink_headers_values = exec_script("//build/gypi_to_gn.py",
                                    [ rebase_path("blink_headers.gypi") ],
@@ skipping 185 matching lines @@
 # GYP version: WebKit/public/blink.gyp:android_mojo_bindings_java
 mojom("android_mojo_bindings") {
   sources = [
     "platform/modules/payments/payment_request.mojom",
   ]
 }
 
 group("generate_mojo_bindings") {
   deps = [
     ":mojo_bindings__generator",
-    ":mojo_bindings_wtf__generator",
+    ":mojo_bindings_blink__generator",
   ]
 }