Clean up old Mojo types for mojom::MediaController

This CL cleans up old Mojo types for mojom::MediaController
with using Receiver instead of Binding.

Bug: 955171
Change-Id: Ia89a66fbf407f9be492db856237b0b8643015f8e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1923974Reviewed-by: Mounir Lamouri <mlamouri@chromium.org>
Reviewed-by: Ken Rockot <rockot@google.com>
Commit-Queue: Julie Kim <jkim@igalia.com>
Cr-Commit-Position: refs/heads/master@{#717491}

services/media_session/public/cpp/test/test_media_controller.cc

@@ -217,7 +217,7 @@ TestMediaController::~TestMediaController() = default;
 mojo::Remote<mojom::MediaController>
 TestMediaController::CreateMediaControllerRemote() {
   mojo::Remote<mojom::MediaController> remote;
-  binding_.Bind(remote.BindNewPipeAndPassReceiver());
+  receiver_.Bind(remote.BindNewPipeAndPassReceiver());
   return remote;
 }
 

services/media_session/public/cpp/test/test_media_controller.h

@@ -10,8 +10,6 @@
 #include "base/component_export.h"
 #include "base/optional.h"
 #include "base/run_loop.h"
-#include "mojo/public/cpp/bindings/binding.h"
-#include "mojo/public/cpp/bindings/interface_ptr_set.h"
 #include "mojo/public/cpp/bindings/receiver.h"
 #include "mojo/public/cpp/bindings/remote_set.h"
 #include "services/media_session/public/mojom/media_controller.mojom.h"
@@ -193,7 +191,7 @@ class COMPONENT_EXPORT(MEDIA_SESSION_TEST_SUPPORT_CPP) TestMediaController
 
   mojo::RemoteSet<mojom::MediaControllerObserver> observers_;
 
-  mojo::Binding<mojom::MediaController> binding_{this};
+  mojo::Receiver<mojom::MediaController> receiver_{this};
 
   DISALLOW_COPY_AND_ASSIGN(TestMediaController);
 };