Media Remoting: Add remoting control logic for encrypted contents.

media/remoting/remoting_sink_observer.cc

Index: media/remoting/remoting_sink_observer.cc
diff --git a/ui/base/resource/scale_factor.cc b/media/remoting/remoting_sink_observer.cc
similarity index 33%
copy from ui/base/resource/scale_factor.cc
copy to media/remoting/remoting_sink_observer.cc
index dceffaec424331060710e4b3ecf9cb82edfb376f..f632e2e5a1ae2d2311ab653905a256e60e5173da 100644
--- a/ui/base/resource/scale_factor.cc
+++ b/media/remoting/remoting_sink_observer.cc
@@ -2,23 +2,23 @@
 // 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
+void RemotingSinkObserver::OnSinkAvailable() {
+  is_sink_available_ = true;
+}
 
-float GetScaleForScaleFactor(ScaleFactor scale_factor) {
-  return kScaleFactorScales[scale_factor];
+void RemotingSinkObserver::OnSinkGone() {
+  is_sink_available_ = false;
 }
 
-}  // namespace ui
+}  // namespace media