Implement accessible states and notifications for the tab strip.

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 1550 matching lines @@
     if (controller_)
       controller_->ContentsChanged(this, text());
     NotifyAccessibilityEvent(ui::AX_EVENT_TEXT_CHANGED, true);
   }
   if (cursor_changed) {
     cursor_visible_ = true;
     RepaintCursor();
     if (cursor_repaint_timer_.IsRunning())
       cursor_repaint_timer_.Reset();
     if (!text_changed) {
-      // TEXT_CHANGED implies SELECTION_CHANGED, so we only need to fire
+      // TEXT_CHANGED implies TEXT_SELECTION_CHANGED, so we only need to fire
       // this if only the selection changed.
-      NotifyAccessibilityEvent(ui::AX_EVENT_SELECTION_CHANGED, true);
+      NotifyAccessibilityEvent(ui::AX_EVENT_TEXT_SELECTION_CHANGED, true);
     }
   }
   if (text_changed || cursor_changed) {
     OnCaretBoundsChanged();
     SchedulePaint();
   }
 }
 
 void Textfield::UpdateCursor() {
   const size_t caret_blink_ms = Textfield::GetCaretBlinkMs();
@@ skipping 194 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