DOM: Remove blink::NodeFilterCondition.

This interface isn't helpful.

BUG=591919

Review-Url: https://codereview.chromium.org/2841393002
Cr-Commit-Position: refs/heads/master@{#467622}

third_party/WebKit/Source/bindings/core/v8/V8NodeFilterCondition.h

@@ -33,7 +33,6 @@
 
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "bindings/core/v8/TraceWrapperV8Reference.h"
-#include "core/dom/NodeFilterCondition.h"
 #include "platform/heap/Handle.h"
 #include "v8/include/v8.h"
 
@@ -48,8 +47,9 @@ class ScriptState;
 // is referenced by a NodeIterator/TreeWalker.
 //
 // Binding generator should generate this code.  See crbug.com/630986.
-class V8NodeFilterCondition final : public NodeFilterCondition,
-                                    public TraceWrapperBase {
+class V8NodeFilterCondition final
+    : public GarbageCollectedFinalized<V8NodeFilterCondition>,
+      public TraceWrapperBase {
  public:
   static V8NodeFilterCondition* CreateOrNull(v8::Local<v8::Value> filter,
                                              ScriptState* script_state) {
@@ -57,10 +57,11 @@ class V8NodeFilterCondition final : public NodeFilterCondition,
                             : new V8NodeFilterCondition(filter, script_state);
   }
 
-  ~V8NodeFilterCondition() override;
+  ~V8NodeFilterCondition();
+  DEFINE_INLINE_VIRTUAL_TRACE() {}
   DECLARE_TRACE_WRAPPERS();
 
-  unsigned acceptNode(Node*, ExceptionState&) const override;
+  unsigned acceptNode(Node*, ExceptionState&) const;
   v8::Local<v8::Value> Callback(v8::Isolate* isolate) const {
     return filter_.NewLocal(isolate);
   }

third_party/WebKit/Source/core/dom/BUILD.gn

@@ -225,7 +225,6 @@ blink_core_sources("dom") {
     "NodeChildRemovalTracker.h",
     "NodeComputedStyle.h",
     "NodeFilter.h",
-    "NodeFilterCondition.h",
     "NodeIterator.cpp",
     "NodeIterator.h",
     "NodeIteratorBase.cpp",

third_party/WebKit/Source/core/dom/NodeFilterCondition.h

-/*
- * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
- * Copyright (C) 2000 Frederik Holljen (frederik.holljen@hig.no)
- * Copyright (C) 2001 Peter Kelly (pmk@post.com)
- * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
- * Copyright (C) 2004, 2008, 2009 Apple Inc. All rights reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- *
- */
-
-#ifndef NodeFilterCondition_h
-#define NodeFilterCondition_h
-
-#include "platform/heap/Handle.h"
-
-namespace blink {
-
-class ExceptionState;
-class Node;
-
-// TODO(tkent): This abstraction isn't helpful. Fold this into
-// V8NodeFilterCondition.
-class NodeFilterCondition
-    : public GarbageCollectedFinalized<NodeFilterCondition> {
- public:
-  virtual ~NodeFilterCondition() {}
-  virtual unsigned acceptNode(Node*, ExceptionState&) const = 0;
-
-  DEFINE_INLINE_VIRTUAL_TRACE() {}
-};
-
-}  // namespace blink
-
-#endif  // NodeFilterCondition_h