Move spell checker in core/editing/ related files into core/editing/spellcheck/

Source/core/html/HTMLTextFormControlElementTest.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 "config.h"
 #include "core/html/HTMLTextFormControlElement.h"
 
 #include "core/dom/Text.h"
 #include "core/editing/FrameSelection.h"
 #include "core/editing/Position.h"
-#include "core/editing/SpellChecker.h"
 #include "core/editing/VisibleSelection.h"
 #include "core/editing/VisibleUnits.h"
+#include "core/editing/spellcheck/SpellChecker.h"
 #include "core/frame/FrameView.h"
 #include "core/html/HTMLBRElement.h"
 #include "core/html/HTMLDocument.h"
 #include "core/html/HTMLInputElement.h"
 #include "core/html/HTMLTextAreaElement.h"
 #include "core/layout/LayoutTreeAsText.h"
 #include "core/loader/EmptyClients.h"
 #include "core/page/SpellCheckerClient.h"
 #include "core/testing/DummyPageHolder.h"
 #include "platform/testing/UnitTestHelpers.h"
@@ skipping 193 matching lines @@
     ASSERT_EQ(3, input->selectionStart());
 
     OwnPtrWillBePersistent<SpellChecker> spellChecker(SpellChecker::create(page().frame()));
     forceLayoutFlag();
     int startCount = layoutCount();
     spellChecker->respondToChangedSelection(oldSelection, FrameSelection::CloseTyping | FrameSelection::ClearTypingStyle);
     EXPECT_EQ(startCount, layoutCount());
 }
 
 } // namespace blink