Roll in new WPT tools

Most notably we would like to have this new lint for Blink internal APIs
in external/wpt: https://github.com/w3c/web-platform-tests/pull/7544

Bug: 749879
Change-Id: Ia1b2a1832b53e98d0c3204948a003a88d24dfff0
Reviewed-on: https://chromium-review.googlesource.com/702534
Commit-Queue: Philip Jägenstedt <foolip@chromium.org>
Reviewed-by: Philip Jägenstedt <foolip@chromium.org>
Cr-Commit-Position: refs/heads/master@{#506781}

third_party/WebKit/Tools/Scripts/webkitpy/thirdparty/wpt/checkout.sh

@@ -9,7 +9,7 @@ cd $DIR
 
 TARGET_DIR=$DIR/wpt
 REMOTE_REPO="https://chromium.googlesource.com/external/w3c/web-platform-tests.git"
-WPT_HEAD=53008fece70040f1886d2ba5ff92a97eed1e4037
+WPT_HEAD=6439a72ba71f99e2f01abb9f69edc779698ba9bc
 
 function clone {
   # Remove existing repo if already exists.

third_party/WebKit/Tools/Scripts/webkitpy/thirdparty/wpt/wpt/tools/lint/lint.py

@@ -17,7 +17,7 @@ from .. import localpaths
 from ..gitignore.gitignore import PathFilter
 from ..wpt import testfiles
 
-from manifest.sourcefile import SourceFile, js_meta_re, python_meta_re
+from manifest.sourcefile import SourceFile, js_meta_re, python_meta_re, space_chars
 from six import binary_type, iteritems, itervalues
 from six.moves import range
 from six.moves.urllib.parse import urlsplit, urljoin
@@ -355,6 +355,12 @@ class PrintRegexp(Regexp):
     file_extensions = [".py"]
     description = "Print function used"
 
+class LayoutTestsRegexp(Regexp):
+    pattern = b"eventSender|testRunner|window\.internals"
+    error = "LAYOUTTESTS APIS"
+    file_extensions = [".html", ".htm", ".js", ".xht", ".xhtml", ".svg"]
+    description = "eventSender/testRunner/window.internals used; these are LayoutTests-specific APIs (WebKit/Blink)"
+
 regexps = [item() for item in
            [TrailingWhitespaceRegexp,
             TabsRegexp,
@@ -364,7 +370,8 @@ regexps = [item() for item in
             Webidl2Regexp,
             ConsoleRegexp,
             GenerateTestsRegexp,
-            PrintRegexp]]
+            PrintRegexp,
+            LayoutTestsRegexp]]
 
 def check_regexp_line(repo_root, path, f, css_mode):
     errors = []
@@ -410,7 +417,7 @@ def check_parsed(repo_root, path, f, css_mode):
         return [("CONTENT-VISUAL", "Visual test whose filename doesn't end in '-visual'", path, None)]
 
     for reftest_node in source_file.reftest_nodes:
-        href = reftest_node.attrib.get("href", "")
+        href = reftest_node.attrib.get("href", "").strip(space_chars)
         parts = urlsplit(href)
         if parts.scheme or parts.netloc:
             errors.append(("ABSOLUTE-URL-REF",

third_party/WebKit/Tools/Scripts/webkitpy/thirdparty/wpt/wpt/tools/manifest/sourcefile.py

@@ -21,6 +21,8 @@ python_meta_re = re.compile(b"#\s*META:\s*(\w*)=(.*)$")
 
 reference_file_re = re.compile(r'(^|[\-_])(not)?ref[0-9]*([\-_]|$)')
 
+space_chars = u"".join(html5lib.constants.spaceCharacters)
+
 def replace_end(s, old, new):
     """
     Given a string `s` that ends with `old`, replace that occurrence of `old`
@@ -399,7 +401,7 @@ class SourceFile(object):
         rel_map = {"match": "==", "mismatch": "!="}
         for item in self.reftest_nodes:
             if "href" in item.attrib:
-                ref_url = urljoin(self.url, item.attrib["href"])
+                ref_url = urljoin(self.url, item.attrib["href"].strip(space_chars))
                 ref_type = rel_map[item.attrib["rel"]]
                 rv.append((ref_url, ref_type))
         return rv
@@ -451,7 +453,7 @@ class SourceFile(object):
         rv = set()
         for item in self.spec_link_nodes:
             if "href" in item.attrib:
-                rv.add(item.attrib["href"])
+                rv.add(item.attrib["href"].strip(space_chars))
         return rv
 
     @cached_property

third_party/WebKit/Tools/Scripts/webkitpy/thirdparty/wpt/wpt/tools/wptserve/wptserve/handlers.py

@@ -58,7 +58,9 @@ class DirectoryHandler(object):
         url_path = request.url_parts.path
 
         if not url_path.endswith("/"):
-            raise HTTPException(404)
+            response.status = 301
+            response.headers = [("Location", "%s/" % request.url)]
+            return
 
         path = filesystem_path(self.base_path, request, self.url_base)