Support HTTP test-server based net unit tests on Android.

build/android/pylib/cmd_helper.py

Index: build/android/pylib/cmd_helper.py
diff --git a/build/android/pylib/cmd_helper.py b/build/android/pylib/cmd_helper.py
index 8b501309060bc5943afbc9c7e96fb1ce97eac397..1eddf5bdfed809c21bfc05d0e0875f6407ce843e 100644
--- a/build/android/pylib/cmd_helper.py
+++ b/build/android/pylib/cmd_helper.py
@@ -48,3 +48,26 @@ def GetCmdOutput(args, cwd=None, shell=False):
     logging.critical(stderr)
   logging.info(stdout[:4096])  # Truncate output longer than 4k.
   return stdout
+
+def GetCmdStatusAndOutput(args, cwd=None, shell=False):
+  """Executes a subprocess and returns its exit code and output.
+
+  Args:
+    args: A string or a sequence of program arguments. The program to execute is
+      the string or the first item in the args sequence.
+    cwd: If not None, the subprocess's current directory will be changed to
+      |cwd| before it's executed.
+    shell: Whether to execute args as a shell command.
+
+  Returns:
+    The tuple (exit code, output).
+  """
+  logging.info(str(args) + ' ' + (cwd or ''))
+  p = subprocess.Popen(args=args, cwd=cwd, stdout=subprocess.PIPE,
+                       stderr=subprocess.PIPE, shell=shell)
+  stdout, stderr = p.communicate()
+  exit_code = p.returncode
+  if stderr:
+    logging.critical(stderr)
+  logging.info(stdout[:4096])  # Truncate output longer than 4k.
+  return (exit_code, stdout)