Remove unnecessary includes from Document.h

third_party/WebKit/Source/core/editing/spellcheck/SpellCheckerTest.cpp

 // Copyright 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/spellcheck/SpellChecker.h"
 
 #include "core/editing/EditingTestBase.h"
 #include "core/editing/Editor.h"
+#include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
 
 namespace blink {
 
 class SpellCheckerTest : public EditingTestBase {
 };
 
 TEST_F(SpellCheckerTest, AdvanceToNextMisspellingWithEmptyInputNoCrash)
 {
     setBodyContent("<input placeholder='placeholder'>abc");
     updateAllLifecyclePhases();
     Element* input = document().querySelector("input", ASSERT_NO_EXCEPTION);
     input->focus();
     document().settings()->setUnifiedTextCheckerEnabled(true);
     // Do not crash in AdvanceToNextMisspelling command.
     EXPECT_TRUE(document().frame()->editor().executeCommand("AdvanceToNextMisspelling"));
     document().settings()->setUnifiedTextCheckerEnabled(false);
 }
 
 } // namespace blink