www/qt6-webengine: fix build with clang 18

Clang 18 has become more stringent about narrowing in initializer lists,
resulting in errors when building www/qt6-webengine:

  ../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/webrtc/pc/legacy_stats_collector.cc:192:54: error: non-constant-expression cannot be narrowed from type 'double' to 'float' in initializer list [-Wc++11-narrowing-const-reference]
    192 |       {StatsReport::kStatsValueNameTotalAudioEnergy, info.total_output_energy},
        |                                                      ^~~~~~~~~~~~~~~~~~~~~~~~
  ../../../../../qtwebengine-everywhere-src-6.6.1/src/3rdparty/chromium/third_party/webrtc/pc/legacy_stats_collector.cc:194:8: error: non-constant-expression cannot be narrowed from type 'double' to 'float' in initializer list [-Wc++11-narrowing-const-reference]
    194 |        info.total_output_duration}};
        |        ^~~~~~~~~~~~~~~~~~~~~~~~~~

Cherry-pick https://webrtc.googlesource.com/src/+/267f9bdd53 into the
thirdparty directory, which fixes these errors.

PR:		276997
MFH:		2024Q1
(cherry picked from commit 0707093c0a5df15911d72c3b2e8001b3428f2e2e)

1 files changed, 114 insertions, 0 deletions

diff --git a/www/qt6-webengine/files/patch-src_3rdparty_chromium_third__party_webrtc_pc_legacy__stats__collector.cc b/www/qt6-webengine/files/patch-src_3rdparty_chromium_third__party_webrtc_pc_legacy__stats__collector.cc
new file mode 100644
index 000000000000..7c8461b8c921
--- /dev/null
+++ b/www/qt6-webengine/files/patch-src_3rdparty_chromium_third__party_webrtc_pc_legacy__stats__collector.cc
@@ -0,0 +1,114 @@
+commit 267f9bdd53a37d1cbee760d5af07880198e1beef
+Author: Tommi <tommi@webrtc.org>
+Date:   2023-12-21T14:08:26+01:00
+
+    Update LegacyStatsCollector to conform with Wc++11-narrowing
+    
+    Bug: none
+    Change-Id: Ida6a1af5c324473a55ea4f3b143862ea016ff50a
+    Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/332240
+    Commit-Queue: Tomas Gunnarsson <tommi@webrtc.org>
+    Reviewed-by: Harald Alvestrand <hta@webrtc.org>
+    Auto-Submit: Tomas Gunnarsson <tommi@webrtc.org>
+    Reviewed-by: Alexander Kornienko <alexfh@google.com>
+    Reviewed-by: Henrik Boström <hbos@webrtc.org>
+    Cr-Commit-Position: refs/heads/main@{#41432}
+
+--- src/3rdparty/chromium/third_party/webrtc/pc/legacy_stats_collector.cc.orig	2023-11-20 16:08:07 UTC
++++ src/3rdparty/chromium/third_party/webrtc/pc/legacy_stats_collector.cc
+@@ -189,9 +189,10 @@ void ExtractStats(const cricket::VoiceReceiverInfo& in
+       {StatsReport::kStatsValueNameAccelerateRate, info.accelerate_rate},
+       {StatsReport::kStatsValueNamePreemptiveExpandRate,
+        info.preemptive_expand_rate},
+-      {StatsReport::kStatsValueNameTotalAudioEnergy, info.total_output_energy},
++      {StatsReport::kStatsValueNameTotalAudioEnergy,
++       static_cast<float>(info.total_output_energy)},
+       {StatsReport::kStatsValueNameTotalSamplesDuration,
+-       info.total_output_duration}};
++       static_cast<float>(info.total_output_duration)}};
+ 
+   const IntForAdd ints[] = {
+       {StatsReport::kStatsValueNameCurrentDelayMs, info.delay_estimate_ms},
+@@ -245,9 +246,10 @@ void ExtractStats(const cricket::VoiceSenderInfo& info
+   SetAudioProcessingStats(report, info.apm_statistics);
+ 
+   const FloatForAdd floats[] = {
+-      {StatsReport::kStatsValueNameTotalAudioEnergy, info.total_input_energy},
++      {StatsReport::kStatsValueNameTotalAudioEnergy,
++       static_cast<float>(info.total_input_energy)},
+       {StatsReport::kStatsValueNameTotalSamplesDuration,
+-       info.total_input_duration}};
++       static_cast<float>(info.total_input_duration)}};
+ 
+   RTC_DCHECK_GE(info.audio_level, 0);
+   const IntForAdd ints[] = {
+@@ -341,7 +343,8 @@ void ExtractStats(const cricket::VideoReceiverInfo& in
+       {StatsReport::kStatsValueNamePlisSent, info.plis_sent},
+       {StatsReport::kStatsValueNameRenderDelayMs, info.render_delay_ms},
+       {StatsReport::kStatsValueNameTargetDelayMs, info.target_delay_ms},
+-      {StatsReport::kStatsValueNameFramesDecoded, info.frames_decoded},
++      {StatsReport::kStatsValueNameFramesDecoded,
++       static_cast<int>(info.frames_decoded)},
+   };
+ 
+   for (const auto& i : ints)
+@@ -385,15 +388,19 @@ void ExtractStats(const cricket::VideoSenderInfo& info
+        info.encode_usage_percent},
+       {StatsReport::kStatsValueNameFirsReceived, info.firs_rcvd},
+       {StatsReport::kStatsValueNameFrameHeightSent, info.send_frame_height},
+-      {StatsReport::kStatsValueNameFrameRateInput, round(info.framerate_input)},
++      {StatsReport::kStatsValueNameFrameRateInput,
++       static_cast<int>(round(info.framerate_input))},
+       {StatsReport::kStatsValueNameFrameRateSent, info.framerate_sent},
+       {StatsReport::kStatsValueNameFrameWidthSent, info.send_frame_width},
+-      {StatsReport::kStatsValueNameNacksReceived, info.nacks_rcvd},
++      {StatsReport::kStatsValueNameNacksReceived,
++       static_cast<int>(info.nacks_rcvd)},
+       {StatsReport::kStatsValueNamePacketsLost, info.packets_lost},
+       {StatsReport::kStatsValueNamePacketsSent, info.packets_sent},
+       {StatsReport::kStatsValueNamePlisReceived, info.plis_rcvd},
+-      {StatsReport::kStatsValueNameFramesEncoded, info.frames_encoded},
+-      {StatsReport::kStatsValueNameHugeFramesSent, info.huge_frames_sent},
++      {StatsReport::kStatsValueNameFramesEncoded,
++       static_cast<int>(info.frames_encoded)},
++      {StatsReport::kStatsValueNameHugeFramesSent,
++       static_cast<int>(info.huge_frames_sent)},
+   };
+ 
+   for (const auto& i : ints)
+@@ -782,19 +789,25 @@ StatsReport* LegacyStatsCollector::AddConnectionInfoRe
+                 AddCandidateReport(remote_candidate_stats, false)->id());
+ 
+   const Int64ForAdd int64s[] = {
+-      {StatsReport::kStatsValueNameBytesReceived, info.recv_total_bytes},
+-      {StatsReport::kStatsValueNameBytesSent, info.sent_total_bytes},
+-      {StatsReport::kStatsValueNamePacketsSent, info.sent_total_packets},
+-      {StatsReport::kStatsValueNameRtt, info.rtt},
++      {StatsReport::kStatsValueNameBytesReceived,
++       static_cast<int64_t>(info.recv_total_bytes)},
++      {StatsReport::kStatsValueNameBytesSent,
++       static_cast<int64_t>(info.sent_total_bytes)},
++      {StatsReport::kStatsValueNamePacketsSent,
++       static_cast<int64_t>(info.sent_total_packets)},
++      {StatsReport::kStatsValueNameRtt, static_cast<int64_t>(info.rtt)},
+       {StatsReport::kStatsValueNameSendPacketsDiscarded,
+-       info.sent_discarded_packets},
++       static_cast<int64_t>(info.sent_discarded_packets)},
+       {StatsReport::kStatsValueNameSentPingRequestsTotal,
+-       info.sent_ping_requests_total},
++       static_cast<int64_t>(info.sent_ping_requests_total)},
+       {StatsReport::kStatsValueNameSentPingRequestsBeforeFirstResponse,
+-       info.sent_ping_requests_before_first_response},
+-      {StatsReport::kStatsValueNameSentPingResponses, info.sent_ping_responses},
+-      {StatsReport::kStatsValueNameRecvPingRequests, info.recv_ping_requests},
+-      {StatsReport::kStatsValueNameRecvPingResponses, info.recv_ping_responses},
++       static_cast<int64_t>(info.sent_ping_requests_before_first_response)},
++      {StatsReport::kStatsValueNameSentPingResponses,
++       static_cast<int64_t>(info.sent_ping_responses)},
++      {StatsReport::kStatsValueNameRecvPingRequests,
++       static_cast<int64_t>(info.recv_ping_requests)},
++      {StatsReport::kStatsValueNameRecvPingResponses,
++       static_cast<int64_t>(info.recv_ping_responses)},
+   };
+   for (const auto& i : int64s)
+     report->AddInt64(i.name, i.value);