Make limitations for input.ime.sendKeyEvents API.

chrome/browser/ui/input_method/input_method_engine.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_UI_INPUT_METHOD_INPUT_METHOD_ENGINE_H_
 #define CHROME_BROWSER_UI_INPUT_METHOD_INPUT_METHOD_ENGINE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 39 matching lines @@
                          bool is_visible) override;
   void CommitTextToInputContext(int context_id,
                                 const std::string& text) override;
   bool SendKeyEvent(ui::KeyEvent* ui_event, const std::string& code) override;
 
   // ui::ImeWindowObserver:
   void OnWindowDestroyed(ui::ImeWindow* ime_window) override;
 
   ui::ImeWindow* FindWindowById(int window_id) const;
 
+  // Checks if the page is special page that we want to disable some key events.
+  bool IsSpecialPage(ui::InputMethod* method);
+
+  // Checks if the key event are whitelisted key for all pages.
+  bool IsValidKeyForAllPages(ui::KeyEvent* ui_event);
+
   // Holds the IME window instances for properly closing in the destructor.
   // The follow-cursor window is singleton.
   // The normal windows cannot exceed the max count.
   ui::ImeWindow* follow_cursor_window_;         // Weak.
   std::vector<ui::ImeWindow*> normal_windows_;  // Weak.
 
   // Tracks the current cursor bounds so that the new follow cursor window can
   // be aligned with cursor once it being created.
   gfx::Rect current_cursor_bounds_;
 
   DISALLOW_COPY_AND_ASSIGN(InputMethodEngine);
 };
 
 }  // namespace input_method
 
 #endif  // CHROME_BROWSER_UI_INPUT_METHOD_INPUT_METHOD_ENGINE_H_