Make limitations for input.ime.sendKeyEvents API.

ui/base/ime/input_method.h

 // Copyright (c) 2012 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_INPUT_METHOD_H_
 #define UI_BASE_IME_INPUT_METHOD_H_
 
 #include <stdint.h>
 
 #include <string>
+#include <vector>
 
 #include "base/event_types.h"
 #include "build/build_config.h"
 #include "ui/base/ime/text_input_mode.h"
 #include "ui/base/ime/text_input_type.h"
 
+namespace extensions {
+class InputImeApiTest;
+}  // namespace extensions
+
 namespace ui {
 
 namespace internal {
 class InputMethodDelegate;
 }  // namespace internal
 
 class InputMethodObserver;
 class KeyEvent;
 class TextInputClient;
 
@@ skipping 14 matching lines @@
 //   2) Send VKEY_PROCESSKEY event to the window using the DispatchKeyEvent API,
 //      then update IME status (e.g. composition text) using TextInputClient,
 //      and then send the original key up event to the window.
 // - Keeps track of the focused TextInputClient to see which client can call
 //   APIs, OnTextInputTypeChanged, OnCaretBoundsChanged, and CancelComposition,
 //   that change the state of the input method.
 // In Aura environment, aura::WindowTreeHost creates an instance of
 // ui::InputMethod and owns it.
 class InputMethod {
  public:
+  InputMethod() : track_key_events_for_testing_(false) {}
 
 #if defined(OS_WIN)
   typedef LRESULT NativeEventResult;
 #else
   typedef int32_t NativeEventResult;
 #endif
 
   virtual ~InputMethod() {}
 
   // Sets the delegate used by this InputMethod instance. It should only be
@@ skipping 84 matching lines @@
   // etc.) is open.  Returns false if no popup window is open or the detection
   // of IME popups is not supported.
   virtual bool IsCandidatePopupOpen() const = 0;
 
   // Displays an on screen keyboard if enabled.
   virtual void ShowImeIfNeeded() = 0;
 
   // Management of the observer list.
   virtual void AddObserver(InputMethodObserver* observer) = 0;
   virtual void RemoveObserver(InputMethodObserver* observer) = 0;
+
+ protected:
+  friend class extensions::InputImeApiTest;
+
+  // Gets the tracked key events of using input.ime.sendKeyEvents API.
+  virtual std::vector<ui::KeyEvent*> GetKeyEventsForTesting() = 0;
+
+  // Whether the key events will be tracked. Only used for testing.
+  bool track_key_events_for_testing_;
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_IME_INPUT_METHOD_H_