Add a hook for capturing a user profile photo and saving it to file and local state.

chrome/test/pyautolib/pyauto.py

Index: chrome/test/pyautolib/pyauto.py
diff --git a/chrome/test/pyautolib/pyauto.py b/chrome/test/pyautolib/pyauto.py
index ec3be84359210e4015a48fc641aff497e4c2b120..367ce6c1fa862340900a1efb6ce8bd15876664cd 100644
--- a/chrome/test/pyautolib/pyauto.py
+++ b/chrome/test/pyautolib/pyauto.py
@@ -3607,6 +3607,21 @@ class PyUITest(pyautolib.PyUITestBase, unittest.TestCase):
     }
     return self._GetResultFromJSONRequest(cmd_dict, windex=-1)
 
+  def CaptureProfilePhoto(self):
+    """Captures user profile photo on ChromeOS.
+
+    This is done by driving the TakePhotoDialog. The image file is
+    saved on disk and its path is set in the local state preferences.
+
+    A user needs to be logged-in as a precaution. Image capture is
+    synchronous but the file write is not.
+
+    Raises:
+      pyauto_errors.JSONInterfaceError if the automation call returns an error.
+    """
+    cmd_dict = { 'command': 'CaptureProfilePhoto' }
+    return self._GetResultFromJSONRequest(cmd_dict)
+
   ## ChromeOS section -- end