Add coverage

tools/telemetry/telemetry/__init__.py

 # Copyright 2013 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.
 
 """A library for cross-platform browser tests."""
 import os
 import sys
 
 # Ensure Python >= 2.7.
 if sys.version_info < (2, 7):
   print >> sys.stderr, 'Need Python 2.7 or greater.'
   sys.exit(-1)
 
 from telemetry.internal.util import global_hooks
 global_hooks.InstallHooks()
 
 # Add depdendencies into our path.
 from telemetry.core import util
 
 def _AddDirToPythonPath(*path_parts):
   path = os.path.abspath(os.path.join(*path_parts))
   if os.path.isdir(path) and path not in sys.path:
     # Some callsite that use telemetry assumes that sys.path[0] is the directory
     # containing the script, so we add these extra paths to right after it.
     sys.path.insert(1, path)
 
 
 _AddDirToPythonPath(util.GetTelemetryThirdPartyDir(), 'altgraph')
+_AddDirToPythonPath(util.GetTelemetryThirdPartyDir(), 'coverage')
 _AddDirToPythonPath(util.GetTelemetryThirdPartyDir(), 'mock')
 _AddDirToPythonPath(util.GetTelemetryThirdPartyDir(), 'modulegraph')
 _AddDirToPythonPath(util.GetTelemetryThirdPartyDir(), 'pexpect')
 _AddDirToPythonPath(util.GetTelemetryThirdPartyDir(), 'png')
 _AddDirToPythonPath(util.GetTelemetryThirdPartyDir(), 'pyserial')
 _AddDirToPythonPath(util.GetTelemetryThirdPartyDir(), 'typ')
 _AddDirToPythonPath(util.GetTelemetryThirdPartyDir(), 'webpagereplay')
 _AddDirToPythonPath(util.GetTelemetryThirdPartyDir(), 'websocket-client')
 
 _AddDirToPythonPath(util.GetChromiumSrcDir(), 'build', 'android')
 _AddDirToPythonPath(util.GetChromiumSrcDir(),
                     'third_party', 'catapult', 'tracing')