Make limitations for input.ime.sendKeyEvents API.

chrome/browser/ui/input_method/input_method_engine_base.cc

 // 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.
 
 #include "chrome/browser/ui/input_method/input_method_engine_base.h"
 
 #include <memory>
 
 #undef FocusIn
 #undef FocusOut
@@ skipping 351 matching lines @@
   KeyboardEvent ext_event;
   GetExtensionKeyboardEventFromKeyEvent(key_event, &ext_event);
 
   // If the given key event is equal to the key event sent by
   // SendKeyEvents, this engine ID is propagated to the extension IME.
   // Note, this check relies on that ui::KeyEvent is propagated as
   // reference without copying.
   if (&key_event == sent_key_event_)
     ext_event.extension_id = extension_id_;
 
-  observer_->OnKeyEvent(active_component_id_, ext_event, callback);
+  // Should not pass key event in password field.
+  if (current_input_type_ != ui::TEXT_INPUT_TYPE_PASSWORD)
+    observer_->OnKeyEvent(active_component_id_, ext_event, callback);
 }
 
 void InputMethodEngineBase::SetSurroundingText(const std::string& text,
                                                uint32_t cursor_pos,
                                                uint32_t anchor_pos,
                                                uint32_t offset_pos) {
   observer_->OnSurroundingTextChanged(
       active_component_id_, text, static_cast<int>(cursor_pos),
       static_cast<int>(anchor_pos), static_cast<int>(offset_pos));
 }
@@ skipping 69 matching lines @@
         ui::EventTimeForNow());
     base::AutoReset<const ui::KeyEvent*> reset_sent_key(&sent_key_event_,
                                                         &ui_event);
     if (!SendKeyEvent(&ui_event, event.code))
       return false;
   }
   return true;
 }
 
 }  // namespace input_method