[Telemetry] Update tools/perf/fetch_benchmark_deps.py to use client_config

tools/perf/fetch_benchmark_deps.py

 #!/usr/bin/env python
 # Copyright (c) 2015 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.
 
 """This module fetches and prints the dependencies given a benchmark."""
 
 import os
 import sys
 
 sys.path.append(os.path.join(os.path.dirname(__file__), os.pardir, 'telemetry'))
 
 from catapult_base import cloud_storage
 from telemetry import benchmark_runner
 
 
 def _GetPerfDir(*subdirs):

[aiolos (Not reviewing), 2015/10/13 13:40:15]

These functions are in path_util now. It might be worth moving over to using
them.

[eakuefner, 2016/01/06 23:15:19]

Done. Also, I have added path_util.GetPerfClientConfigPath() to avoid hardcoding
at the ProjectConfig callsite. We should switch clients to use this when we
switch them to using GetTelemetryDir to locate Telemetry.

   perf_dir = os.path.realpath(os.path.dirname(__file__))
   return os.path.join(perf_dir, *subdirs)
 
 
 def GetChromiumDir():
   return _GetPerfDir(os.path.pardir, os.path.pardir, os.path.pardir)
 
 
 def _FetchDependenciesIfNeeded(story_set):
   """ Download files needed by a user story set. """
@@ skipping 32 matching lines @@
   prefix_len = len(os.path.realpath(GetChromiumDir())) + 1
   return [dep[prefix_len:] for dep in deps if dep]
 
 
 def _show_usage():
   print ('Usage: %s benchmark_name\n'
          'Fetch the dependencies of benchmark_name.' % sys.argv[0])
 
 
 def main(output=sys.stdout):
+  top_level_dir = _GetPerfDir()
   config = benchmark_runner.ProjectConfig(
-      top_level_dir=_GetPerfDir(),
-      benchmark_dirs=[_GetPerfDir('benchmarks')])
+      top_level_dir=top_level_dir,
+      benchmark_dirs=[_GetPerfDir('benchmarks')],
+      client_config=os.path.abspath(os.path.join(
+          top_level_dir, 'core', 'binary_dependencies.json')))
 
   name = sys.argv[1]
   benchmark = benchmark_runner.GetBenchmarkByName(name, config)
   if not benchmark:
     raise ValueError('No such benchmark: %s' % name)
 
   # Download files according to specified benchmark.
   story_set = benchmark().CreateStorySet(None)
 
   _FetchDependenciesIfNeeded(story_set)
 
   # Print files downloaded.
   deps = _EnumerateDependencies(story_set)
   for dep in deps:
     print >> output, dep
 
 
 if __name__ == '__main__':
   if len(sys.argv) != 2 or sys.argv[1][0] == '-':
     _show_usage()
   else:
     main()