adb_profile_chrome: Check in perf-to-tracing conversion script

tools/android/adb_profile_chrome/perf_controller.py

Index: tools/android/adb_profile_chrome/perf_controller.py
diff --git a/tools/android/adb_profile_chrome/perf_controller.py b/tools/android/adb_profile_chrome/perf_controller.py
index c7d573e407596c3fd6e8df2a50433b828ec4f42d..9d47110f2eeb59a072b9c81037df657f771f2c58 100644
--- a/tools/android/adb_profile_chrome/perf_controller.py
+++ b/tools/android/adb_profile_chrome/perf_controller.py
@@ -171,9 +171,8 @@ class PerfProfilerController(controllers.BaseController):
         perf_profile, symfs_dir, required_libs, kallsyms))
 
     # Convert the perf profile into JSON.
-    perf_script_path = os.path.join(constants.DIR_SOURCE_ROOT,
-        'tools', 'telemetry', 'telemetry', 'core', 'platform', 'profiler',
-        'perf_vis', 'perf_to_tracing.py')
+    perf_script_path = os.path.join(os.path.dirname(os.path.abspath(__file__)),
+                                    'perf_to_tracing.py')
     json_file_name = os.path.basename(perf_profile)
     with open(os.devnull, 'w') as dev_null, \
         open(json_file_name, 'w') as json_file: