Allow changing the minimal ICE ping timeout with PeerConnection.SetConfiguration.

webrtc/pc/peerconnectioninterface_unittest.cc

Index: webrtc/pc/peerconnectioninterface_unittest.cc
diff --git a/webrtc/pc/peerconnectioninterface_unittest.cc b/webrtc/pc/peerconnectioninterface_unittest.cc
index c2e6e186e459c67338fc783b5c760bf24b5a1671..90f48549902535e63904b8de80c94f945e0e247b 100644
--- a/webrtc/pc/peerconnectioninterface_unittest.cc
+++ b/webrtc/pc/peerconnectioninterface_unittest.cc
@@ -2221,6 +2221,20 @@ TEST_F(PeerConnectionInterfaceTest, SetConfigurationChangesPruneTurnPortsFlag) {
   EXPECT_TRUE(port_allocator_->prune_turn_ports());
 }
 
+// Test that the ice check interval can be changed. This does not verify that
+// the setting makes it all the way to P2PTransportChannel, as that would
+// require a very complex set of mocks.
+TEST_F(PeerConnectionInterfaceTest, SetConfigurationChangesIceCheckInterval) {
+  PeerConnectionInterface::RTCConfiguration config;
+  config.ice_check_min_interval = rtc::Optional<int>();
+  CreatePeerConnection(config, nullptr);
+  config.ice_check_min_interval = rtc::Optional<int>(100);
+  EXPECT_TRUE(pc_->SetConfiguration(config));
+  PeerConnectionInterface::RTCConfiguration new_config =
+      pc_->GetConfiguration();
+  EXPECT_EQ(new_config.ice_check_min_interval, rtc::Optional<int>(100));
+}
+
 // Test that when SetConfiguration changes both the pool size and other
 // attributes, the pooled session is created with the updated attributes.
 TEST_F(PeerConnectionInterfaceTest,