DevTools: Automagically detect user compiled content shell in npm test

third_party/WebKit/Source/devtools/scripts/run_inspector_tests.sh

 #!/usr/bin/env bash
 # Copyright (c) 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Get the full directory path of this script regardless of where it's run from
 # Based on: http://stackoverflow.com/questions/59895/can-a-bash-script-tell-which-directory-it-is-stored-in
 SCRIPT_PATH="$(cd "$(dirname "${BASH_SOURCE[0]}" )" && pwd)"
 
 CHROMIUM_ROOT_PATH=${SCRIPT_PATH}"/../../../../.."
 OUT_PATH=${CHROMIUM_ROOT_PATH}"/out/Release"
 RUN_LAYOUT_TEST_PATH=${CHROMIUM_ROOT_PATH}"/blink/tools/run_layout_tests.py"
 ALL_TESTS=" inspector** http/tests/inspector**"
 DEBUG_FLAG=" --additional-driver-flag=--debug-devtools --time-out-ms=6000000 --additional-driver-flag=--remote-debugging-port=9222"
 
 COMMAND=${RUN_LAYOUT_TEST_PATH}
 
+echo "===================================================="
+echo "This shell script is DEPRECATED and will be removed"
+echo "Please use 'npm test' instead"
+echo "See README.md on how to use"
+echo "===================================================="
+echo
+
 ninja -C ${OUT_PATH} devtools_frontend_resources
 if [ "$1" == "-d" ]
 then
     shift
     COMMAND=${COMMAND}${DEBUG_FLAG}
     echo "============================"
     echo "Go to: http://localhost:9222"
     echo "============================"
 fi
 
 if [ $# -eq 0 ]
 then
     COMMAND=${COMMAND}${ALL_TESTS}
 else
     COMMAND=${COMMAND}" $@"
 fi
 
 ${COMMAND}