Remove unnecessary includes from Document.h

third_party/WebKit/Source/core/editing/EditingCommandTest.cpp

 // Copyright (c) 2016 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/editing/EditingTestBase.h"
 #include "core/editing/Editor.h"
 #include "core/editing/commands/EditorCommandNames.h"
+#include "core/frame/LocalFrame.h"
 #include "public/platform/WebEditingCommandType.h"
 #include "wtf/StringExtras.h"
 
 namespace blink {
 
 namespace {
 
 struct CommandNameEntry {
     const char* name;
     WebEditingCommandType type;
@@ skipping 46 matching lines @@
         "12345",
     };
     Editor& dummyEditor = document().frame()->editor();
     for (const auto& commandName : kInvalidCommandName) {
         Editor::Command command = dummyEditor.createCommand(commandName);
         EXPECT_EQ(0, command.idForHistogram());
     }
 }
 
 } // namespace blink