Move shell interfaces into the shell.mojom namespace.

components/html_viewer/layout_test_html_viewer.cc

 // Copyright 2015 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 "components/html_viewer/layout_test_html_viewer.h"
 
 #include <utility>
 
 #include "components/html_viewer/global_state.h"
 #include "components/html_viewer/layout_test_content_handler_impl.h"
@@ skipping 27 matching lines @@
 void LayoutTestHTMLViewer::TestFinished() {
   test_interfaces_->ResetAll();
 
   web_view::LayoutTestRunnerPtr test_runner_ptr;
   app()->ConnectToService("mojo:web_view_test_runner", &test_runner_ptr);
   test_runner_ptr->TestFinished();
 }
 
 void LayoutTestHTMLViewer::Create(
     mojo::ApplicationConnection* connection,
-    mojo::InterfaceRequest<mojo::ContentHandler> request) {
+    mojo::InterfaceRequest<mojo::shell::mojom::ContentHandler> request) {
   new LayoutTestContentHandlerImpl(global_state(), app(), std::move(request),
                                    test_interfaces_.get(), &test_delegate_);
 }
 
 }  // namespace html_viewer