An edit for SetText needs to be merged with previous edit for omnibox.

views/controls/textfield/native_textfield_views.cc

 // Copyright (c) 2011 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 441 matching lines @@
   if (is_cursor_visible_) {
     is_cursor_visible_ = false;
     RepaintCursor();
   }
 }
 
 TextInputClient* NativeTextfieldViews::GetTextInputClient() {
   return textfield_->read_only() ? NULL : this;
 }
 
+void NativeTextfieldViews::ClearEditHistory() {
+  model_->ClearEditHistory();
+}
+
 /////////////////////////////////////////////////////////////////
 // NativeTextfieldViews, ui::SimpleMenuModel::Delegate overrides:
 
 bool NativeTextfieldViews::IsCommandIdChecked(int command_id) const {
   return true;
 }
 
 bool NativeTextfieldViews::IsCommandIdEnabled(int command_id) const {
   bool editable = !textfield_->read_only();
   string16 result;
@@ skipping 614 matching lines @@
   // Filter out all control characters, including tab and new line characters,
   // and all characters with Alt modifier. But we need to allow characters with
   // AltGr modifier.
   // On Windows AltGr is represented by Alt+Ctrl, and on Linux it's a different
   // flag that we don't care about.
   return ((ch >= 0x20 && ch < 0x7F) || ch > 0x9F) &&
       (flags & ~(ui::EF_SHIFT_DOWN | ui::EF_CAPS_LOCK_DOWN)) != ui::EF_ALT_DOWN;
 }
 
 }  // namespace views