Build chrome.input.ime.* API in GN mode.

chrome/browser/extensions/api/input_ime/input_ime_event_router_base.h

+// Copyright 2016 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_EXTENSIONS_API_INPUT_IME_INPUT_IME_EVENT_ROUTER_BASE_H_
+#define CHROME_BROWSER_EXTENSIONS_API_INPUT_IME_INPUT_IME_EVENT_ROUTER_BASE_H_
+
+#include <map>
+#include <string>
+#include <utility>
+
+#include "base/macros.h"
+#include "chrome/browser/profiles/profile.h"

[Devlin, 2016/01/07 23:08:29]

forward declare

[Azure Wei, 2016/01/08 06:40:55]

Done.

+#include "extensions/browser/extension_function.h"

[Devlin, 2016/01/07 23:08:29]

needed?

[Azure Wei, 2016/01/08 06:40:55]

Deleted.

+#include "ui/base/ime/ime_engine_handler_interface.h"
+
+class Profile;
+
+namespace ui {
+class IMEEngineHandlerInterface;
+}  // namespace ui
+
+namespace extensions {
+
+class InputImeEventRouterBase {
+ public:
+  explicit InputImeEventRouterBase(Profile* profile);
+  virtual ~InputImeEventRouterBase();
+
+  // Called when a key event was handled.
+  void OnKeyEventHandled(const std::string& extension_id,
+                         const std::string& request_id,
+                         bool handled);
+
+  std::string AddRequest(
+      const std::string& component_id,
+      ui::IMEEngineHandlerInterface::KeyEventDoneCallback& key_data);
+
+protected:

[Devlin, 2016/01/07 23:08:29]

indentation. Also, probably prefer a profile() accessor and making the member
private.

[Azure Wei, 2016/01/08 06:40:55]

Done.

+  Profile* profile_;
+
+ private:
+  using RequestMap =
+      std::map<std::string,
+               std::pair<std::string,
+                         ui::IMEEngineHandlerInterface::KeyEventDoneCallback>>;
+
+  unsigned int next_request_id_;
+  RequestMap request_map_;
+
+  DISALLOW_COPY_AND_ASSIGN(InputImeEventRouterBase);
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_API_INPUT_IME_INPUT_IME_EVENT_ROUTER_BASE_H_