Remove MediaControls methods needed for the Cast button

third_party/WebKit/Source/modules/remoteplayback/AvailabilityCallbackWrapper.cpp

+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "modules/remoteplayback/AvailabilityCallbackWrapper.h"
+
+#include "bindings/modules/v8/RemotePlaybackAvailabilityCallback.h"
+#include "modules/remoteplayback/RemotePlayback.h"
+
+namespace blink {
+
+AvailabilityCallbackWrapper::AvailabilityCallbackWrapper(
+    RemotePlaybackAvailabilityCallback* callback)
+    : bindings_cb_(this, callback) {}
+
+AvailabilityCallbackWrapper::AvailabilityCallbackWrapper(
+    std::unique_ptr<WTF::Closure> callback)
+    : bindings_cb_(nullptr, nullptr), internal_cb_(std::move(callback)) {}
+
+void AvailabilityCallbackWrapper::Run(RemotePlayback* remote_playback,
+                                      bool new_availability) {
+  if (internal_cb_) {
+    DCHECK(!bindings_cb_);
+    (*internal_cb_.get())();
+    return;
+  }
+
+  bindings_cb_->call(remote_playback, new_availability);
+}
+
+DEFINE_TRACE(AvailabilityCallbackWrapper) {
+  visitor->Trace(bindings_cb_);
+}
+
+DEFINE_TRACE_WRAPPERS(AvailabilityCallbackWrapper) {
+  visitor->TraceWrappers(bindings_cb_);
+}
+
+}  // namespace blink