[WIP] Add support for Android SuggestionSpans when editing text

third_party/WebKit/Source/core/editing/TextSuggestionBackendImplAndroid.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 TextSuggestionBackendImplAndroid_h
+#define TextSuggestionBackendImplAndroid_h
+
+#include "core/CoreExport.h"
+#include "core/editing/TextSuggestionController.h"
+#include "mojo/public/cpp/bindings/strong_binding.h"
+#include "platform/heap/Persistent.h"
+#include "public/platform/input_messages.mojom-blink.h"
+
+namespace blink {
+
+class LocalFrame;
+class TextSuggestionController;
+
+class CORE_EXPORT TextSuggestionBackendImplAndroid final
+    : public mojom::blink::TextSuggestionBackend {
+ public:
+  explicit TextSuggestionBackendImplAndroid(LocalFrame&);
+
+  static void create(LocalFrame*, mojom::blink::TextSuggestionBackendRequest);
+
+  void ApplySuggestionReplacement(int64_t document_marker_hash,
+                                  int32_t suggestion_index) override;
+  void DeleteSuggestionHighlight() override;
+  void SuggestionMenuClosed() override;
+
+ private:
+  WeakPersistent<LocalFrame> m_frame;
+};
+
+}  // namespace blink
+
+#endif  // TextSuggestionBackendImplAndroid_h