Add missing header file in mac framework target

Bug: webrtc:13025
Change-Id: I16c31717dd8ffa4075386b403827729099b567da
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/227163
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#34592}
diff --git a/sdk/BUILD.gn b/sdk/BUILD.gn
index 358338f..24e041a 100644
--- a/sdk/BUILD.gn
+++ b/sdk/BUILD.gn
@@ -1396,6 +1396,7 @@
           "objc/api/peerconnection/RTCRtpTransceiver.h",
           "objc/api/peerconnection/RTCSSLAdapter.h",
           "objc/api/peerconnection/RTCSessionDescription.h",
+          "objc/api/peerconnection/RTCStatisticsReport.h",
           "objc/api/peerconnection/RTCTracing.h",
           "objc/api/peerconnection/RTCVideoSource.h",
           "objc/api/peerconnection/RTCVideoTrack.h",