Retreive screenshots captured by tests from test devices.

build/android/test_runner.py

Index: build/android/test_runner.py
diff --git a/build/android/test_runner.py b/build/android/test_runner.py
index 8f169665f0d733fa2a860c506649318991546d74..a6aca239d30af8da5b7044c76e7a42b447d88d50 100755
--- a/build/android/test_runner.py
+++ b/build/android/test_runner.py
@@ -425,6 +425,14 @@ def AddInstrumentationTestOptions(parser):
       '--timeout-scale',
       type=float,
       help='Factor by which timeouts should be scaled.')
+  parser.add_argument(
+      '--ui-screenshot-directory',
+      dest='ui_screenshot_dir', type=os.path.realpath,
+      help='Destination for screenshots captured by the tests')
+  parser.add_argument(

[mikecase (-- gone --), 2017/05/19 15:46:43]

This looks like it was accidentally re-added

[aberent, 2017/05/22 18:03:20]

Done.

+      '-w', '--wait_debugger',
+      action='store_true', dest='wait_for_debugger',
+      help='Wait for debugger.')
 
   # These arguments are suppressed from the help text because they should
   # only ever be specified by an intermediate script.