Convert FeatureManager of chromecast to new Mojo types

This CL converts FeatureManagerPtr and FeatureManagerRequest
to new Mojo types.

It uses Remote and PendingReceiver instead of
FeatureManagerPtr and FeatureManagerRequest.

Bug: 955171
Change-Id: I88f7e339768c0aaaafdc43d9ec515e1d4b8e7464
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1804710Reviewed-by: Oksana Zhuravlova <oksamyt@chromium.org>
Reviewed-by: Sean Topping <seantopping@chromium.org>
Commit-Queue: Dave Tapuska <dtapuska@chromium.org>
Cr-Commit-Position: refs/heads/master@{#697278}

chromecast/browser/cast_web_contents_impl.cc

@@ -366,9 +366,10 @@ void CastWebContentsImpl::RenderFrameCreated(
         render_frame_host->GetRemoteAssociatedInterfaces());
   }
 
-  chromecast::shell::mojom::FeatureManagerPtr feature_manager_ptr;
-  render_frame_host->GetRemoteInterfaces()->GetInterface(&feature_manager_ptr);
-  feature_manager_ptr->ConfigureFeatures(GetRendererFeatures());
+  mojo::Remote<chromecast::shell::mojom::FeatureManager> feature_manager_remote;
+  render_frame_host->GetRemoteInterfaces()->GetInterface(
+      feature_manager_remote.BindNewPipeAndPassReceiver());
+  feature_manager_remote->ConfigureFeatures(GetRendererFeatures());
 
   chromecast::shell::mojom::MediaPlaybackOptionsAssociatedPtr
       media_playback_options;