Roll WPT tooling.

This rolls up to 79d2debce531d115566192dccf70f5d8fb9ced53.
Only one change is pulled in to support Shadow Root in webdriver.

Cq-Include-Trybots: luci.chromium.try:linux-wpt-identity-fyi-rel,linux-wpt-input-fyi-rel
Change-Id: Iccc7e81c85b3f387e1cca1e2dfd588ec230c61a8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2636692
Commit-Queue: Stephen McGruer <smcgruer@chromium.org>
Auto-Submit: Luke Z <lpz@chromium.org>
Reviewed-by: Stephen McGruer <smcgruer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#845160}

third_party/blink/tools/blinkpy/third_party/README.chromium

@@ -22,7 +22,7 @@ Local Modifications: None
 Name: web-platform-tests - Test Suites for Web Platform specifications
 Short Name: wpt
 URL: https://github.com/web-platform-tests/wpt/
-Version: f333959abe07e6c4cfb388f4f7a03a0a109b38a5
+Version: 79d2debce531d115566192dccf70f5d8fb9ced53
 License: LICENSES FOR W3C TEST SUITES (https://www.w3.org/Consortium/Legal/2008/03-bsd-license.html)
 License File: wpt/wpt/LICENSE.md
 Security Critical: no

third_party/blink/tools/blinkpy/third_party/wpt/checkout.sh

@@ -9,7 +9,7 @@ cd $DIR
 
 TARGET_DIR=$DIR/wpt
 REMOTE_REPO="https://github.com/web-platform-tests/wpt.git"
-WPT_HEAD=f333959abe07e6c4cfb388f4f7a03a0a109b38a5
+WPT_HEAD=79d2debce531d115566192dccf70f5d8fb9ced53
 
 function clone {
   # Remove existing repo if already exists.

third_party/blink/tools/blinkpy/third_party/wpt/wpt/tools/webdriver/webdriver/__init__.py

@@ -6,6 +6,7 @@ from .client import (
     Find,
     Frame,
     Session,
+    ShadowRoot,
     Timeouts,
     Window)
 from .error import (

third_party/blink/tools/blinkpy/third_party/wpt/wpt/tools/webdriver/webdriver/client.py

@@ -372,6 +372,42 @@ class Frame(object):
         return cls(uuid, session)
 
 
+class ShadowRoot(object):
+    identifier = "shadow-075b-4da1-b6ba-e579c2d3230a"
+
+    def __init__(self, session, id):
+        """
+        Construct a new shadow root representation.
+
+        :param id: Shadow root UUID which must be unique across
+            all browsing contexts.
+        :param session: Current ``webdriver.Session``.
+        """
+        self.id = id
+        self.session = session
+
+    @classmethod
+    def from_json(cls, json, session):
+        uuid = json[ShadowRoot.identifier]
+        return cls(uuid, session)
+
+    def send_shadow_command(self, method, uri, body=None):
+        url = "shadow/{}/{}".format(self.id, uri)
+        return self.session.send_session_command(method, url, body)
+
+    @command
+    def find_element(self, strategy, selector):
+        body = {"using": strategy,
+                "value": selector}
+        return self.send_shadow_command("POST", "element", body)
+
+    @command
+    def find_elements(self, strategy, selector):
+        body = {"using": strategy,
+                "value": selector}
+        return self.send_shadow_command("POST", "elements", body)
+
+
 class Find(object):
     def __init__(self, session):
         self.session = session
@@ -804,6 +840,11 @@ class Element(object):
     def screenshot(self):
         return self.send_element_command("GET", "screenshot")
 
+    @property
+    @command
+    def shadow_root(self):
+        return self.send_element_command("GET", "shadow")
+
     @command
     def attribute(self, name):
         return self.send_element_command("GET", "attribute/%s" % name)

third_party/blink/tools/blinkpy/third_party/wpt/wpt/tools/webdriver/webdriver/error.py

@@ -34,6 +34,11 @@ class WebDriverException(Exception):
         return message
 
 
+class DetachedShadowRootException(WebDriverException):
+    http_status = 404
+    status_code = "detached shadow root"
+
+
 class ElementClickInterceptedException(WebDriverException):
     http_status = 400
     status_code = "element click intercepted"
@@ -114,6 +119,11 @@ class NoSuchFrameException(WebDriverException):
     status_code = "no such frame"
 
 
+class NoSuchShadowRootException(WebDriverException):
+    http_status = 404
+    status_code = "no such shadow root"
+
+
 class NoSuchWindowException(WebDriverException):
     http_status = 404
     status_code = "no such window"

third_party/blink/tools/blinkpy/third_party/wpt/wpt/tools/webdriver/webdriver/protocol.py

@@ -22,6 +22,8 @@ class Encoder(json.JSONEncoder):
             return {webdriver.Frame.identifier: obj.id}
         elif isinstance(obj, webdriver.Window):
             return {webdriver.Frame.identifier: obj.id}
+        elif isinstance(obj, webdriver.ShadowRoot):
+            return {webdriver.ShadowRoot.identifier: obj.id}
         return super(Encoder, self).default(obj)
 
 
@@ -40,6 +42,8 @@ class Decoder(json.JSONDecoder):
             return webdriver.Frame.from_json(payload, self.session)
         elif isinstance(payload, dict) and webdriver.Window.identifier in payload:
             return webdriver.Window.from_json(payload, self.session)
+        elif isinstance(payload, dict) and webdriver.ShadowRoot.identifier in payload:
+            return webdriver.ShadowRoot.from_json(payload, self.session)
         elif isinstance(payload, dict):
             return {k: self.object_hook(v) for k, v in iteritems(payload)}
         return payload

third_party/blink/tools/blinkpy/third_party/wpt/wpt/tools/wptserve/wptserve/stash.py

@@ -75,7 +75,10 @@ def start_server(address=None, authkey=None, mp_context=None):
     manager = ServerDictManager(address, authkey, **kwargs)
     manager.start()
 
-    return (manager, manager._address, manager._authkey)
+    address = manager._address
+    if isinstance(address, bytes):
+        address = address.decode("ascii")
+    return (manager, address, manager._authkey)
 
 
 class LockWrapper(object):