Add support for Android spellcheck menu in Chrome/WebViews

third_party/WebKit/Source/core/editing/suggestion/TextSuggestionController.h

Index: third_party/WebKit/Source/core/editing/suggestion/TextSuggestionController.h
diff --git a/third_party/WebKit/Source/core/editing/suggestion/TextSuggestionController.h b/third_party/WebKit/Source/core/editing/suggestion/TextSuggestionController.h
new file mode 100644
index 0000000000000000000000000000000000000000..61f8bd13617288b52927a9cc363afde90186f82b
--- /dev/null
+++ b/third_party/WebKit/Source/core/editing/suggestion/TextSuggestionController.h
@@ -0,0 +1,62 @@
+// 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 TextSuggestionController_h
+#define TextSuggestionController_h
+
+#include "core/CoreExport.h"
+#include "core/dom/DocumentShutdownObserver.h"
+#include "platform/heap/Handle.h"
+#include "public/platform/input_host.mojom-blink.h"
+
+namespace blink {
+
+class Document;
+class LocalFrame;
+
+// This class handles functionality related to displaying a menu of text
+// suggestions (e.g. from spellcheck), and performing actions relating to those
+// suggestions. Android is currently the only platform that has such a menu.
+class CORE_EXPORT TextSuggestionController final
+    : public GarbageCollectedFinalized<TextSuggestionController>,
+      public DocumentShutdownObserver {
+  WTF_MAKE_NONCOPYABLE(TextSuggestionController);

[yosin_UTC9, 2017/06/16 01:21:04]

Let's use DISALLOW_COPY_AND_ASSIGN()

+  USING_GARBAGE_COLLECTED_MIXIN(TextSuggestionController);
+
+ public:
+  explicit TextSuggestionController(LocalFrame&);
+
+  void DocumentAttached(Document*);
+
+  bool IsMenuOpen() const;
+
+  void HandlePotentialMisspelledWordTap();
+
+  void ApplySpellCheckSuggestion(const WTF::String& suggestion);
+  void DeleteActiveSuggestionRange();
+  void NewWordAddedToDictionary(const WTF::String& word);
+  void SpellCheckMenuTimeoutCallback();
+  void SuggestionMenuClosed();
+
+  DECLARE_TRACE();
+
+ private:
+  Document& GetDocument() const;
+  bool IsAvailable() const;
+
+  LocalFrame& GetFrame() const {
+    DCHECK(frame_);
+    return *frame_;
+  }
+
+  void ReplaceActiveSuggestionRange(const String&);
+
+  bool suggestion_menu_is_open_;
+  Member<LocalFrame> frame_;
+  mojom::blink::TextSuggestionHostPtr text_suggestion_host_;
+};
+
+}  // namespace blink
+
+#endif  // TextSuggestionController_h