Automatically call OnNativeThemeChanged when a widget is added to a hierarchy

chrome/browser/ui/views/omnibox/omnibox_view_views.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 "chrome/browser/ui/views/omnibox/omnibox_view_views.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/string_util.h"
@@ skipping 143 matching lines @@
   // we want them to be destroyed before destroying any other internal state.
   popup_view_.reset();
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // OmniboxViewViews public:
 
 void OmniboxViewViews::Init() {
   set_controller(this);
   SetTextInputType(DetermineTextInputType());
-  SetBackgroundColor(location_bar_view_->GetColor(
-      ToolbarModel::NONE, LocationBarView::BACKGROUND));
 
   if (popup_window_mode_)
     SetReadOnly(true);
 
   // Initialize the popup view using the same font.
   popup_view_.reset(OmniboxPopupContentsView::Create(
       GetFontList(), this, model(), location_bar_view_));
 
 #if defined(OS_CHROMEOS)
   chromeos::input_method::InputMethodManager::Get()->
@@ skipping 872 matching lines @@
     menu_contents->InsertItemWithStringIdAt(
         select_all_position + 1, IDS_SHOW_URL, IDS_SHOW_URL);
   }
 
   // Minor note: We use IDC_ for command id here while the underlying textfield
   // is using IDS_ for all its command ids. This is because views cannot depend
   // on IDC_ for now.
   menu_contents->AddItemWithStringId(IDC_EDIT_SEARCH_ENGINES,
       IDS_EDIT_SEARCH_ENGINES);
 }