Fix incorrect use of AXState caused when refactoring two enums into one.

ui/views/controls/textfield/textfield.cc

 // 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.
 
 #include "ui/views/controls/textfield/textfield.h"
 
 #include <string>
 
 #include "base/debug/trace_event.h"
 #include "grit/ui_strings.h"
@@ skipping 718 matching lines @@
 
 void Textfield::OnDragDone() {
   initiating_drag_ = false;
   drop_cursor_visible_ = false;
 }
 
 void Textfield::GetAccessibleState(ui::AXViewState* state) {
   state->role = ui::AX_ROLE_TEXT_FIELD;
   state->name = accessible_name_;
   if (read_only())
-    state->state |= ui::AX_STATE_READ_ONLY;
+    state->AddStateFlag(ui::AX_STATE_READ_ONLY);
   if (text_input_type_ == ui::TEXT_INPUT_TYPE_PASSWORD)
-    state->state |= ui::AX_STATE_PROTECTED;
+    state->AddStateFlag(ui::AX_STATE_PROTECTED);
   state->value = text();
 
   const gfx::Range range = GetSelectedRange();
   state->selection_start = range.start();
   state->selection_end = range.end();
 
   if (!read_only()) {
     state->set_value_callback =
         base::Bind(&Textfield::AccessibilitySetValue,
                    weak_ptr_factory_.GetWeakPtr());
@@ skipping 744 matching lines @@
       const size_t length = selection_clipboard_text.length();
       range = gfx::Range(range.start() + length, range.end() + length);
     }
     model_->MoveCursorTo(gfx::SelectionModel(range, affinity));
     UpdateAfterChange(true, true);
     OnAfterUserAction();
   }
 }
 
 }  // namespace views