[Android] Add a configurable environment for devil/.

build/android/devil/android/sdk/split_select.py

Index: build/android/devil/android/sdk/split_select.py
diff --git a/build/android/devil/android/sdk/split_select.py b/build/android/devil/android/sdk/split_select.py
index 47fcea3cea616c9cdad4d593489e3e3c612be011..4e20bee5e7b85f15be1218c3568328b73a973e8a 100644
--- a/build/android/devil/android/sdk/split_select.py
+++ b/build/android/devil/android/sdk/split_select.py
@@ -6,10 +6,9 @@
 
 import os
 
+from devil import devil_env
 from devil.utils import cmd_helper
-from pylib import constants
 
-_SPLIT_SELECT_PATH = os.path.join(constants.ANDROID_SDK_TOOLS, 'split-select')
 
 def _RunSplitSelectCmd(args):
   """Runs a split-select command.
@@ -20,7 +19,9 @@ def _RunSplitSelectCmd(args):
   Returns:
     The output of the command.
   """
-  cmd = [_SPLIT_SELECT_PATH] + args
+  split_select_path = os.path.join(
+      devil_env.config.android_sdk_build_tools_path, 'split-select')
+  cmd = [split_select_path] + args
   status, output = cmd_helper.GetCmdStatusAndOutput(cmd)
   if status != 0:
     raise Exception('Failed running command "%s" with output "%s".' %