[Android] Prepare build/android/ for catapult+devil.

build/android/enable_asserts.py

Index: build/android/enable_asserts.py
diff --git a/build/android/enable_asserts.py b/build/android/enable_asserts.py
index 0616567acbdae89984c6490365632423f43c531d..b303edad9a578818fe4cac80305228629a0005c5 100755
--- a/build/android/enable_asserts.py
+++ b/build/android/enable_asserts.py
@@ -9,6 +9,7 @@
 import argparse
 import sys
 
+import devil_chromium
 from devil.android import device_blacklist
 from devil.android import device_utils
 
@@ -28,6 +29,8 @@ def main():
 
   args = parser.parse_args()
 
+  devil_chromium.Initialize()
+
   blacklist = (device_blacklist.Blacklist(args.blacklist_file)
                if args.blacklist_file
                else None)