Enable breakpad building by default on Android.

ppapi/native_client/tests/breakpad_crash_test/crash_dump_tester.py

 #!/usr/bin/python
 # Copyright (c) 2012 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.
 
 import os
 import subprocess
 import sys
 import tempfile
 import time
@@ skipping 123 matching lines @@
   elif sys.platform == 'darwin':
     dumps_dir = temp_dir
     os.environ['BREAKPAD_DUMP_LOCATION'] = dumps_dir
   elif sys.platform.startswith('linux'):
     # The "--user-data-dir" option is not effective for the Breakpad
     # setup in Linux Chromium, because Breakpad is initialized before
     # "--user-data-dir" is read.  So we set HOME to redirect the crash
     # dumps to a temporary directory.
     home_dir = temp_dir
     os.environ['HOME'] = home_dir
-    # On Linux, we also need to set CHROME_ENABLE_BREAKPAD.
-    os.environ['CHROME_ENABLE_BREAKPAD'] = '1'
+    options.enable_crash_reporter = True
 
   result = browser_tester.Run(options.url, options)
 
   # Find crash dump results.
   if sys.platform.startswith('linux'):
     # Look in "~/.config/*/Crash Reports".  This will find crash
     # reports under ~/.config/chromium or ~/.config/google-chrome, or
     # under other subdirectories in case the branding is changed.
     dumps_dirs = [os.path.join(path, 'Crash Reports')
                   for path in ListPathsInDir(os.path.join(home_dir, '.config'))]
@@ skipping 53 matching lines @@
   cleanup_funcs = []
   try:
     return Main(cleanup_funcs)
   finally:
     for func in cleanup_funcs:
       func()
 
 
 if __name__ == '__main__':
   sys.exit(MainWrapper())