WIP: стабилизация звонков и E2EE + инструменты сборки WebRTC

tools/webrtc-custom/bootstrap_depot_tools.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+DEPOT_TOOLS_DIR="${DEPOT_TOOLS_DIR:-$HOME/depot_tools}"
+
+if [[ ! -d "${DEPOT_TOOLS_DIR}/.git" ]]; then
+  git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git "${DEPOT_TOOLS_DIR}"
+fi
+
+echo
+echo "depot_tools ready: ${DEPOT_TOOLS_DIR}"
+echo "Add to PATH in your shell profile:"
+echo "  export PATH=\"${DEPOT_TOOLS_DIR}:\$PATH\""