Implement input.ime.sendKeyEvents API.

ui/base/ime/ime_input_context_handler_interface.h

 // Copyright 2014 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 UI_BASE_IME_IME_INPUT_CONTEXT_HANDLER_INTERFACE_H_
 #define UI_BASE_IME_IME_INPUT_CONTEXT_HANDLER_INTERFACE_H_
 
 #include <stdint.h>
 
 #include <string>
 #include "ui/base/ime/composition_text.h"
 #include "ui/base/ime/ui_base_ime_export.h"
+#include "ui/events/event.h"
 
 namespace ui {
 
 class UI_BASE_IME_EXPORT IMEInputContextHandlerInterface {
  public:
   // Called when the engine commit a text.
   virtual void CommitText(const std::string& text) = 0;
 
   // Called when the engine updates composition text.
   virtual void UpdateCompositionText(const CompositionText& text,
                                      uint32_t cursor_pos,
                                      bool visible) = 0;
 
   // Called when the engine request deleting surrounding string.
   virtual void DeleteSurroundingText(int32_t offset, uint32_t length) = 0;
+
+  // Called when the engine sends a key event.
+  virtual void SendKeyEvent(KeyEvent* event) = 0;
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_IME_IME_INPUT_CONTEXT_HANDLER_INTERFACE_H_