Add chrome.input.ime.activate and chrome.input.ime.deactivate API

chrome/browser/extensions/api/input_ime/input_ime_api_nonchromeos.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_API_NONCHROMEOS_H_
 #define CHROME_BROWSER_EXTENSIONS_API_INPUT_IME_INPUT_IME_API_NONCHROMEOS_H_
 
 #include "chrome/browser/extensions/api/input_ime/input_ime_event_router_base.h"
 #include "chrome/browser/profiles/profile.h"
+#include "extensions/browser/extension_function.h"
 
 class Profile;
 
 namespace extensions {
 class InputImeEventRouterBase;
 
 class InputImeEventRouter : public InputImeEventRouterBase {
  public:
   explicit InputImeEventRouter(Profile* profile);
   ~InputImeEventRouter() override;
 
+  bool RegisterImeExtension(const std::string& extension_id);
+  void UnregisterImeExtension(const std::string& extension_id);
+
+  ui::IMEEngineHandlerInterface* GetActiveEngine(
+      const std::string& extension_id);
+
+  void SetActiveEngine(const std::string& extension_id);
+
+ private:
+  // The id of the all registered extensions.
+  std::vector<std::string> extension_ids_;
+
   DISALLOW_COPY_AND_ASSIGN(InputImeEventRouter);
 };
 
+class InputImeActivateFunction : public SyncExtensionFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION("input.ime.activate", INPUT_IME_ACTIVATE)
+
+ protected:
+  ~InputImeActivateFunction() override {}
+
+  // ExtensionFunction:
+  bool RunSync() override;

[Devlin, 2016/01/11 21:48:34]

Read comments in extension_function.h above RunSync() (TL;DR:
SyncExtensionFunction is deprecated).

[Azure Wei, 2016/01/13 02:28:10]

Done.

+};
+
+class InputImeDeactivateFunction : public SyncExtensionFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION("input.ime.deactivate", INPUT_IME_DEACTIVATE)
+
+ protected:
+  ~InputImeDeactivateFunction() override {}
+
+  // ExtensionFunction:
+  bool RunSync() override;
+};
+
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_INPUT_IME_INPUT_IME_API_NONCHROMEOS_H_