Split out dscp option from VideoOptions to new struct MediaChannelOptions.

talk/media/webrtc/webrtcvideoengine2_unittest.cc

Index: talk/media/webrtc/webrtcvideoengine2_unittest.cc
diff --git a/talk/media/webrtc/webrtcvideoengine2_unittest.cc b/talk/media/webrtc/webrtcvideoengine2_unittest.cc
index ed31c8a9baeeef388a0d55c2332fb5a11ccd924d..0c4a042b4d25a46dcd2415bc44790f45b0add7e0 100644
--- a/talk/media/webrtc/webrtcvideoengine2_unittest.cc
+++ b/talk/media/webrtc/webrtcvideoengine2_unittest.cc
@@ -343,8 +343,8 @@ TEST_F(WebRtcVideoEngine2Test, CVOSetHeaderExtensionAfterCapturer) {
 
 TEST_F(WebRtcVideoEngine2Test, SetSendFailsBeforeSettingCodecs) {
   engine_.Init();
-  rtc::scoped_ptr<VideoMediaChannel> channel(
-      engine_.CreateChannel(call_.get(), cricket::VideoOptions()));
+  rtc::scoped_ptr<VideoMediaChannel> channel(engine_.CreateChannel(
+      call_.get(), MediaChannelOptions(), VideoOptions()));
 
   EXPECT_TRUE(channel->AddSendStream(StreamParams::CreateLegacy(123)));
 
@@ -356,8 +356,8 @@ TEST_F(WebRtcVideoEngine2Test, SetSendFailsBeforeSettingCodecs) {
 
 TEST_F(WebRtcVideoEngine2Test, GetStatsWithoutSendCodecsSetDoesNotCrash) {
   engine_.Init();
-  rtc::scoped_ptr<VideoMediaChannel> channel(
-      engine_.CreateChannel(call_.get(), cricket::VideoOptions()));
+  rtc::scoped_ptr<VideoMediaChannel> channel(engine_.CreateChannel(
+      call_.get(), MediaChannelOptions(), VideoOptions()));
   EXPECT_TRUE(channel->AddSendStream(StreamParams::CreateLegacy(123)));
   VideoMediaInfo info;
   channel->GetStats(&info);
@@ -536,7 +536,7 @@ VideoMediaChannel* WebRtcVideoEngine2Test::SetUpForExternalEncoderFactory(
   engine_.Init();
 
   VideoMediaChannel* channel =
-      engine_.CreateChannel(call_.get(), cricket::VideoOptions());
+      engine_.CreateChannel(call_.get(), MediaChannelOptions(), VideoOptions());
   cricket::VideoSendParameters parameters;
   parameters.codecs = codecs;
   EXPECT_TRUE(channel->SetSendParameters(parameters));
@@ -551,7 +551,7 @@ VideoMediaChannel* WebRtcVideoEngine2Test::SetUpForExternalDecoderFactory(
   engine_.Init();
 
   VideoMediaChannel* channel =
-      engine_.CreateChannel(call_.get(), cricket::VideoOptions());
+      engine_.CreateChannel(call_.get(), MediaChannelOptions(), VideoOptions());
   cricket::VideoRecvParameters parameters;
   parameters.codecs = codecs;
   EXPECT_TRUE(channel->SetRecvParameters(parameters));
@@ -895,8 +895,8 @@ class WebRtcVideoChannel2Test : public WebRtcVideoEngine2Test {
   void SetUp() override {
     fake_call_.reset(new FakeCall(webrtc::Call::Config()));
     engine_.Init();
-    channel_.reset(
-        engine_.CreateChannel(fake_call_.get(), cricket::VideoOptions()));
+    channel_.reset(engine_.CreateChannel(
+        fake_call_.get(), MediaChannelOptions(), VideoOptions()));
     last_ssrc_ = 123;
     send_parameters_.codecs = engine_.codecs();
     recv_parameters_.codecs = engine_.codecs();
@@ -2378,21 +2378,25 @@ TEST_F(WebRtcVideoChannel2Test, SetSend) {
 TEST_F(WebRtcVideoChannel2Test, TestSetDscpOptions) {
   rtc::scoped_ptr<cricket::FakeNetworkInterface> network_interface(
       new cricket::FakeNetworkInterface);
-  channel_->SetInterface(network_interface.get());
-  cricket::VideoSendParameters parameters = send_parameters_;
-  EXPECT_TRUE(channel_->SetSendParameters(parameters));
-  EXPECT_EQ(rtc::DSCP_NO_CHANGE, network_interface->dscp());
-  parameters.options.dscp = rtc::Optional<bool>(true);
-  EXPECT_TRUE(channel_->SetSendParameters(parameters));
-  EXPECT_EQ(rtc::DSCP_AF41, network_interface->dscp());
-  // Verify previous value is not modified if dscp option is not set.
-  cricket::VideoSendParameters parameters1 = send_parameters_;
-  EXPECT_TRUE(channel_->SetSendParameters(parameters1));
+  MediaChannelOptions options;
+  rtc::scoped_ptr<VideoMediaChannel> channel;
+
+  channel.reset(engine_.CreateChannel(call_.get(), options, VideoOptions()));
+  channel->SetInterface(network_interface.get());
+  // Current implementation always sets the DiffServCodePoint.
+  EXPECT_EQ(rtc::DSCP_DEFAULT, network_interface->dscp());
+
+  options.enable_dscp = true;
+  channel.reset(engine_.CreateChannel(call_.get(), options, VideoOptions()));
+  channel->SetInterface(network_interface.get());
   EXPECT_EQ(rtc::DSCP_AF41, network_interface->dscp());
-  parameters1.options.dscp = rtc::Optional<bool>(false);
-  EXPECT_TRUE(channel_->SetSendParameters(parameters1));
+
+  // Verify that setting the option to false resets the
+  // DiffServCodePoint.
+  options.enable_dscp = false;
+  channel.reset(engine_.CreateChannel(call_.get(), options, VideoOptions()));
+  channel->SetInterface(network_interface.get());
   EXPECT_EQ(rtc::DSCP_DEFAULT, network_interface->dscp());
-  channel_->SetInterface(NULL);
 }
 
 // This test verifies that the RTCP reduced size mode is properly applied to
@@ -3200,7 +3204,8 @@ class WebRtcVideoChannel2SimulcastTest : public testing::Test {
 
   void SetUp() override {
     engine_.Init();
-    channel_.reset(engine_.CreateChannel(&fake_call_, VideoOptions()));
+    channel_.reset(engine_.CreateChannel(&fake_call_, MediaChannelOptions(),
+                                         VideoOptions()));
     last_ssrc_ = 123;
   }