Convert Spellcheck host MessageFilter IPC to mojo

chrome/browser/spellchecker/spellcheck_host_impl.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 CHROME_BROWSER_SPELLCHECKER_SPELLCHECK_HOST_IMPL_H_
+#define CHROME_BROWSER_SPELLCHECKER_SPELLCHECK_HOST_IMPL_H_
+
+#include <memory>
+#include <vector>
+
+#include "base/macros.h"
+#include "components/spellcheck/common/spellcheck.mojom.h"
+#include "components/spellcheck/spellcheck_build_features.h"
+
+#if !BUILDFLAG(ENABLE_SPELLCHECK)
+#error "Spellcheck should be enabled."
+#endif
+
+class SpellcheckCustomDictionary;
+class SpellcheckService;
+class SpellingServiceClient;
+
+struct SpellCheckResult;
+
+namespace service_manager {
+struct BindSourceInfo;
+}
+
+class SpellCheckHostImpl : public spellcheck::mojom::SpellCheckHost {
+ public:
+  explicit SpellCheckHostImpl(int render_process_id);
+  ~SpellCheckHostImpl() override;
+
+  static void Create(int render_process_id,
+                     const service_manager::BindSourceInfo& source_info,
+                     spellcheck::mojom::SpellCheckHostRequest request);
+
+ private:
+  friend class TestSpellCheckHostImpl;
+
+  // spellcheck::mojom::SpellCheckHost:
+  void RequestDictionary() override;
+  void NotifyChecked(const base::string16& word, bool misspelled) override;
+  void CallSpellingService(
+      const base::string16& text,
+      const CallSpellingServiceCallback& callback) override;
+
+#if !BUILDFLAG(USE_BROWSER_SPELLCHECKER)
+  // Invoked when the remote Spelling service has finished checking the
+  // text of a CallSpellingService request.
+  void CallSpellingServiceDone(
+      const CallSpellingServiceCallback& callback,
+      bool success,
+      const base::string16& text,
+      const std::vector<SpellCheckResult>& service_results);
+
+  // Filter out spelling corrections of custom dictionary words from the
+  // Spelling service results.
+  static std::vector<SpellCheckResult> FilterCustomWordResults(
+      const std::string& text,
+      const SpellcheckCustomDictionary& custom_dictionary,
+      const std::vector<SpellCheckResult>& service_results);
+#endif
+
+  // Returns the SpellcheckService of our |render_process_id_|.
+  virtual SpellcheckService* GetSpellcheckService() const;
+
+  // The process ID of our render process host.
+  int render_process_id_;
+
+  // A JSON-RPC client that calls the remote Spelling service.
+  std::unique_ptr<SpellingServiceClient> client_;
+
+  DISALLOW_COPY_AND_ASSIGN(SpellCheckHostImpl);
+};
+
+#endif  // CHROME_BROWSER_SPELLCHECKER_SPELLCHECK_HOST_IMPL_H_