| Index: build/android/pylib/instrumentation/apk_info.py | 
| diff --git a/build/android/pylib/instrumentation/apk_info.py b/build/android/pylib/instrumentation/apk_info.py | 
| index 46f0d7bb9f161d088f1a8221b2e176ecf8fbbdc0..fc7dcdfd9d05da67af4daddeb04c426b7e44c85b 100644 | 
| --- a/build/android/pylib/instrumentation/apk_info.py | 
| +++ b/build/android/pylib/instrumentation/apk_info.py | 
| @@ -5,6 +5,7 @@ | 
| """Gathers information about APKs.""" | 
|  | 
| import collections | 
| +import constants | 
| import logging | 
| import os | 
| import pickle | 
| @@ -32,7 +33,8 @@ class ApkInfo(object): | 
| """Helper class for inspecting APKs.""" | 
|  | 
| def __init__(self, apk_path, jar_path): | 
| -    self._PROGUARD_PATH = os.path.join(os.environ['ANDROID_SDK_ROOT'], | 
| +    sdk_root = os.getenv('ANDROID_SDK_ROOT', constants.ANDROID_SDK_ROOT) | 
| +    self._PROGUARD_PATH = os.path.join(sdk_root, | 
| 'tools/proguard/bin/proguard.sh') | 
| if not os.path.exists(self._PROGUARD_PATH): | 
| self._PROGUARD_PATH = os.path.join(os.environ['ANDROID_BUILD_TOP'], | 
|  |