Implement hot mode invocation for idle time spell checker

third_party/WebKit/Source/core/editing/spellcheck/HotModeSpellCheckRequester.h

+// Copyright 2017 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 HotModeSpellCheckRequester_h
+#define HotModeSpellCheckRequester_h
+
+#include "core/editing/Position.h"
+
+namespace blink {
+
+class SpellCheckRequester;
+
+// This class is only supposed to be used by IdleSpellCheckCallback in hot mode
+// invocation. Not to be confused with SpellCheckRequester.
+class HotModeSpellCheckRequester {
+  STACK_ALLOCATED();
+  DISALLOW_COPY_AND_ASSIGN(HotModeSpellCheckRequester);

[yosin_UTC9, 2017/03/07 01:30:31]

nit: I think we should put |DISALLOW_COPY_AND_ASSIGN()| at end of class
declaration to follow others.

There are 91 occurrences in WebKit/Source, exceptional files are:
 - core/dom/custom/CustomElementDefinition.h
 - core/editing/spellcheck/IdleSpellCheckCallback.h

[Xiaocheng, 2017/03/07 01:37:19]

Done. We should also clean the above two.

Btw, there is mixed usage of DISALLOW_COPY_AND_ASSIGN and WTF_MAKE_NONCOPYABLE.
And WTF_MAKE_NONCOPYABLE is used at the beginning of class declaration.

We should also unify them somehow...

+
+ public:
+  explicit HotModeSpellCheckRequester(SpellCheckRequester&);
+  void checkSpellingAt(const Position&);
+
+ private:
+  HeapVector<Member<const Element>> m_processedRootEditables;
+  Member<SpellCheckRequester> m_requester;
+};
+
+}  // namespace blink
+
+#endif