Android: upstream latest changes for build/android.

build/android/run_tests.py

 #!/usr/bin/env 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.
 
 """Runs all the native unit tests.
 
 1. Copy over test binary to /data/local on device.
 2. Resources: chrome/unit_tests requires resources (chrome.pak and en-US.pak)
-   to be deployed to the device (in TEST_DATA_DIR).
+   to be deployed to the device. We use the device's $EXTERNAL_STORAGE as the
+   base dir (which maps to Context.getExternalFilesDir()).
 3. Environment:
 3.1. chrome/unit_tests requires (via chrome_paths.cc) a directory named:
-     TEST_DATA_DIR + /chrome/test/data
+     $EXTERNAL_STORAGE + /chrome/test/data
 3.2. page_cycler_tests have following requirements,
 3.2.1  the following data on host:
        <chrome_src_dir>/tools/page_cycler
        <chrome_src_dir>/data/page_cycler
 3.2.2. two data directories to store above test data on device named:
-       TEST_DATA_DIR + /tools/ (for database perf test)
-       TEST_DATA_DIR + /data/ (for other perf tests)
+       $EXTERNAL_STORAGE + /tools/ (for database perf test)
+       $EXTERNAL_STORAGE + /data/ (for other perf tests)
 3.2.3. a http server to serve http perf tests.
        The http root is host's <chrome_src_dir>/data/page_cycler/, port 8000.
 3.2.4  a tool named forwarder is also required to run on device to
        forward the http request/response between host and device.
 3.2.5  Chrome is installed on device.
 4. Run the binary in the device and stream the log to the host.
 4.1. Optionally, filter specific tests.
 4.2. Optionally, rebaseline: run the available tests and update the
      suppressions file for failures.
 4.3. If we're running a single test suite and we have multiple devices
@@ skipping 407 matching lines @@
   # the batch (this happens because the exit status is a sum of all failures
   # from all suites, but the buildbot associates the exit status only with the
   # most recent step).
   if options.exit_code:
     return failed_tests_count
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv))