Media Remoting: Add remoting control logic for encrypted contents.

media/remoting/remoting_sink_observer.cc

 // Copyright 2016 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 "ui/base/resource/scale_factor.h"
+#include "media/remoting/remoting_sink_observer.h"
 
-#include "base/macros.h"
+namespace media {
 
-namespace ui {
+RemotingSinkObserver::RemotingSinkObserver(
+    mojom::RemotingSourceRequest source_request,
+    mojom::RemoterPtr remoter)
+    : binding_(this, std::move(source_request)), remoter_(std::move(remoter)) {}
 
-namespace {
+RemotingSinkObserver::~RemotingSinkObserver() {}
 
-const float kScaleFactorScales[] = {1.0f, 1.0f, 1.25f, 1.33f, 1.4f, 1.5f, 1.8f,
-                                    2.0f, 2.5f, 3.0f};
-static_assert(NUM_SCALE_FACTORS == arraysize(kScaleFactorScales),
-              "kScaleFactorScales has incorrect size");
-
-}  // namespace
-
-float GetScaleForScaleFactor(ScaleFactor scale_factor) {
-  return kScaleFactorScales[scale_factor];
+void RemotingSinkObserver::OnSinkAvailable() {
+  is_sink_available_ = true;
 }
 
-}  // namespace ui
+void RemotingSinkObserver::OnSinkGone() {
+  is_sink_available_ = false;
+}
+
+}  // namespace media