Sync RTCDataChannel and RTCPeerConnection IDL with spec

tools/metrics/histograms/histograms.xml

Index: tools/metrics/histograms/histograms.xml
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index 70389d43200048300533932f785797a5fad4b831..752a38bafea160f8ca95d7bd5b111f87b32e7c32 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -83575,6 +83575,19 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <int value="1635" label="GamepadPoseAngularVelocity"/>
   <int value="1636" label="GamepadPoseAngularAcceleration"/>
   <int value="1637" label="DeprecatedBluetoothDeviceUUIDsAttribute"/>
+  <int value="1638" label="V8RTCDataChannel_MaxRetransmitTime_AttributeGetter"/>
+  <int value="1639" label="V8RTCDataChannel_MaxRetransmits_AttributeGetter"/>
+  <int value="1640" label="V8RTCDataChannel_Reliable_AttributeGetter"/>
+  <int value="1641" label="V8RTCPeerConnection_AddStream_Method"/>
+  <int value="1642" label="V8RTCPeerConnection_CreateDTMFSender_Method"/>
+  <int value="1643" label="V8RTCPeerConnection_GetLocalStreams_Method"/>
+  <int value="1644" label="V8RTCPeerConnection_GetRemoteStreams_Method"/>
+  <int value="1645" label="V8RTCPeerConnection_GetStreamById_Method"/>
+  <int value="1646" label="V8RTCPeerConnection_RemoveStream_Method"/>
+  <int value="1647" label="V8RTCPeerConnection_UpdateIce_Method"/>
+  <int value="1648"
+      label="RTCPeerConnectionCreateDataChannelMaxRetransmitTime"/>
+  <int value="1649" label="RTCPeerConnectionCreateDataChannelMaxRetransmits"/>
 </enum>
 
 <enum name="FetchRequestMode" type="int">