Mojo: Add a WebSocket/Client interface and hook it up to the HTML viewer.

mojo/mojo_services.gypi

Index: mojo/mojo_services.gypi
diff --git a/mojo/mojo_services.gypi b/mojo/mojo_services.gypi
index a0cca340e2f721edc927b807ad8940e23231cf60..d1588e5270048a3e8e7db1afe6657c50ff1cfdaf 100644
--- a/mojo/mojo_services.gypi
+++ b/mojo/mojo_services.gypi
@@ -40,6 +40,8 @@
         'services/html_viewer/webcookiejar_impl.h',
         'services/html_viewer/webmimeregistry_impl.cc',
         'services/html_viewer/webmimeregistry_impl.h',
+        'services/html_viewer/websockethandle_impl.cc',
+        'services/html_viewer/websockethandle_impl.h',
         'services/html_viewer/webstoragenamespace_impl.cc',
         'services/html_viewer/webstoragenamespace_impl.h',
         'services/html_viewer/webthemeengine_impl.cc',
@@ -356,6 +358,7 @@
         'services/public/interfaces/network/network_error.mojom',
         'services/public/interfaces/network/network_service.mojom',
         'services/public/interfaces/network/url_loader.mojom',
+        'services/public/interfaces/network/web_socket.mojom',
       ],
       'includes': [ 'public/tools/bindings/mojom_bindings_generator.gypi' ],
       'export_dependent_settings': [
@@ -389,6 +392,8 @@
         'services/network/network_service_impl.h',
         'services/network/url_loader_impl.cc',
         'services/network/url_loader_impl.h',
+        'services/network/web_socket_impl.cc',
+        'services/network/web_socket_impl.h',
       ],
     },
     {