Introduce MojoRendererFactory::ServiceProvider.

media/mojo/services/mojo_renderer_factory.cc

Index: media/mojo/services/mojo_renderer_factory.cc
diff --git a/media/mojo/services/mojo_renderer_factory.cc b/media/mojo/services/mojo_renderer_factory.cc
index 029c378ad24e8c77437f040cd22ecbe16642c3a6..dffa43222d8edde9af9cc19c3a7ec46879a8b37c 100644
--- a/media/mojo/services/mojo_renderer_factory.cc
+++ b/media/mojo/services/mojo_renderer_factory.cc
@@ -7,13 +7,13 @@
 #include "base/single_thread_task_runner.h"
 #include "media/mojo/interfaces/media_renderer.mojom.h"
 #include "media/mojo/services/mojo_renderer_impl.h"
-#include "mojo/public/cpp/application/connect.h"
 
 namespace media {
 
 MojoRendererFactory::MojoRendererFactory(
-    mojo::ServiceProviderPtr renderer_service_provider)
-    : renderer_service_provider_(renderer_service_provider.Pass()) {
+    const ConnectToServiceCB& connect_to_service_cb)
+    : connect_to_service_cb_(connect_to_service_cb) {
+  DCHECK(!connect_to_service_cb_.is_null());
 }
 
 MojoRendererFactory::~MojoRendererFactory() {
@@ -22,10 +22,8 @@ MojoRendererFactory::~MojoRendererFactory() {
 scoped_ptr<Renderer> MojoRendererFactory::CreateRenderer(
     const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner,
     AudioRendererSink* /* audio_renderer_sink */) {
-  DCHECK(renderer_service_provider_.get());
   mojo::MediaRendererPtr mojo_media_renderer;
-  mojo::ConnectToService(renderer_service_provider_.get(),
-                         &mojo_media_renderer);
+  connect_to_service_cb_.Run(&mojo_media_renderer);
   return scoped_ptr<Renderer>(
       new MojoRendererImpl(media_task_runner, mojo_media_renderer.Pass()));
 }