Added browser-side service for navigator.actions.

content/browser/frame_host/render_frame_host_impl.cc

Index: content/browser/frame_host/render_frame_host_impl.cc
diff --git a/content/browser/frame_host/render_frame_host_impl.cc b/content/browser/frame_host/render_frame_host_impl.cc
index fadeeca42041cb03120150ffe39978fa7c35804d..20b13e97e6ae2c51577af1ee20c45ecc8d27ce3a 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -51,6 +51,7 @@
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_view_base.h"
 #include "content/browser/wake_lock/wake_lock_service_context.h"
+#include "content/browser/webshare/share_service_impl.h"
 #include "content/browser/webui/web_ui_controller_factory_registry.h"
 #include "content/common/accessibility_messages.h"
 #include "content/common/frame_messages.h"
@@ -2057,6 +2058,12 @@ void RenderFrameHostImpl::RegisterMojoInterfaces() {
                    base::Unretained(this)));
   }
 
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kEnableExperimentalWebPlatformFeatures)) {
+    GetInterfaceRegistry()->AddInterface(base::Bind(
+        &ShareServiceImpl::Create, GetProcess()->GetBrowserContext()));
+  }
+
   if (!frame_mojo_shell_)
     frame_mojo_shell_.reset(new FrameMojoShell(this));