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

chrome/browser/input_method/input_method_engine.h

Index: chrome/browser/input_method/input_method_engine.h
diff --git a/chrome/browser/input_method/input_method_engine.h b/chrome/browser/input_method/input_method_engine.h
new file mode 100644
index 0000000000000000000000000000000000000000..341e24b949d41f4c52d84da16b57a180e8e5a5f4
--- /dev/null
+++ b/chrome/browser/input_method/input_method_engine.h
@@ -0,0 +1,32 @@
+// 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_INPUT_METHOD_INPUT_METHOD_ENGINE_H_
+#define CHROME_BROWSER_INPUT_METHOD_INPUT_METHOD_ENGINE_H_
+
+#include <string>
+#include <vector>
+
+#include "chrome/browser/input_method/input_method_engine_base.h"
+
+namespace input_method {
+class InputMethodEngine : public InputMethodEngineBase {
+ public:
+  InputMethodEngine();
+
+  ~InputMethodEngine() override;
+
+  // ui::IMEEngineHandlerInterface:
+  bool SendKeyEvents(int context_id,
+                     const std::vector<KeyboardEvent>& events) override;
+  bool IsActive() const override;
+  std::string GetExtensionId() const override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(InputMethodEngine);
+};
+
+}  // namespace input_method
+
+#endif  // CHROME_BROWSER_INPUT_METHOD_INPUT_METHOD_ENGINE_H_