Implement a simple version of SelectorQuery.

third_party/WebKit/Source/core/dom/query/SelectorAnyMatcher.h

Index: third_party/WebKit/Source/core/dom/query/SelectorAnyMatcher.h
diff --git a/third_party/WebKit/Source/core/dom/query/SelectorAnyMatcher.h b/third_party/WebKit/Source/core/dom/query/SelectorAnyMatcher.h
new file mode 100644
index 0000000000000000000000000000000000000000..15e31175ab00f66ea185bb3023e7e6659e13ade7
--- /dev/null
+++ b/third_party/WebKit/Source/core/dom/query/SelectorAnyMatcher.h
@@ -0,0 +1,22 @@
+// Copyright 2015 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.
+
+#ifndef SelectorAnyMatcher_h
+#define SelectorAnyMatcher_h
+
+#include "core/dom/query/SelectorMatcher.h"
+
+namespace blink {
+
+class SelectorAnyMatcher final : public SelectorMatcher {
+public:
+    SelectorAnyMatcher();
+    ~SelectorAnyMatcher() override;
+
+    bool match(Element&, ContainerNode& rootNode) const override;
+};
+
+}
+
+#endif