html_viewer: Move webcrypto to a place where html_viewer can use it.

mojo/services/html_viewer/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("//testing/test.gni")
 import("//third_party/mojo/src/mojo/public/mojo.gni")
 import("//third_party/mojo/src/mojo/public/mojo_application.gni")
 import("//tools/grit/repack.gni")
 
 # Repack this here.
@@ skipping 80 matching lines @@
   ]
 
   include_dirs = [ "third_party/WebKit" ]
 
   deps = [
     "//base",
     "//base/third_party/dynamic_annotations",
     "//cc",
     "//cc/blink",
     "//cc/surfaces",
+    "//components/webcrypto",
     "//gin",
     "//media",
     "//media/blink",
     "//media/mojo",
     "//mojo/application",
     "//mojo/cc",
     "//mojo/common",
     "//mojo/converters/surfaces",
     "//mojo/services/network/public/cpp",
     "//mojo/services/network/public/interfaces",
@@ skipping 113 matching lines @@
   ]
 
   deps = [
     ":lib",
     ":html_viewer",
     "//mojo/application:test_support",
     "//net:test_support",
     "//testing/gtest",
   ]
 }