OnKeyPress was not returning true when keypress is handled.

views/controls/textfield/native_textfield_views.cc

 // Copyright (c) 2010 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 "views/controls/textfield/native_textfield_views.h"
 
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 457 matching lines @@
     }
     if (text_changed) {
       textfield_->SyncText();
       Textfield::Controller* controller = textfield_->GetController();
       if (controller)
         controller->ContentsChanged(textfield_, GetText());
     }
     if (text_changed || cursor_changed) {
       UpdateCursorBoundsAndTextOffset();
       SchedulePaint();
+      return true;
     }
   }
   return false;
 }
 
 char16 NativeTextfieldViews::GetPrintableChar(const KeyEvent& key_event) {
   // TODO(oshima): IME, i18n support.
   // This only works for UCS-2 characters.
   app::KeyboardCode key_code = key_event.GetKeyCode();
   bool shift = key_event.IsShiftDown() ^ key_event.IsCapsLockDown();
@@ skipping 201 matching lines @@
 }
 
 void NativeTextfieldViews::TextfieldBorder::SetInsets(int top,
                                                       int left,
                                                       int bottom,
                                                       int right) {
   insets_.Set(top, left, bottom, right);
 }
 
 }  // namespace views