[selectors4] Implement :focus-within pseudo-class

third_party/WebKit/Source/core/inspector/InspectorTraceEvents.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/inspector/InspectorTraceEvents.h"
 
 #include <inttypes.h>
 
 #include <memory>
 
@@ skipping 227 matching lines @@
     DEFINE_STRING_MAPPING(PseudoNthLastChild)
     DEFINE_STRING_MAPPING(PseudoNthLastOfType)
     DEFINE_STRING_MAPPING(PseudoLink)
     DEFINE_STRING_MAPPING(PseudoVisited)
     DEFINE_STRING_MAPPING(PseudoAny)
     DEFINE_STRING_MAPPING(PseudoAnyLink)
     DEFINE_STRING_MAPPING(PseudoAutofill)
     DEFINE_STRING_MAPPING(PseudoHover)
     DEFINE_STRING_MAPPING(PseudoDrag)
     DEFINE_STRING_MAPPING(PseudoFocus)
+    DEFINE_STRING_MAPPING(PseudoFocusWithin)
     DEFINE_STRING_MAPPING(PseudoActive)
     DEFINE_STRING_MAPPING(PseudoChecked)
     DEFINE_STRING_MAPPING(PseudoEnabled)
     DEFINE_STRING_MAPPING(PseudoFullPageMedia)
     DEFINE_STRING_MAPPING(PseudoDefault)
     DEFINE_STRING_MAPPING(PseudoDisabled)
     DEFINE_STRING_MAPPING(PseudoOptional)
     DEFINE_STRING_MAPPING(PseudoPlaceholderShown)
     DEFINE_STRING_MAPPING(PseudoRequired)
     DEFINE_STRING_MAPPING(PseudoReadOnly)
@@ skipping 954 matching lines @@
   return value;
 }
 
 std::unique_ptr<TracedValue> InspectorAsyncTask::Data(const String& name) {
   std::unique_ptr<TracedValue> value = TracedValue::Create();
   value->SetString("name", name);
   return value;
 }
 
 }  // namespace blink