views: Extract Widget observer into its own header file.

chrome/browser/ui/views/first_run_bubble.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/first_run_bubble.h"
 
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/first_run/first_run.h"
 #include "chrome/browser/search_engines/util.h"
 #include "chrome/browser/ui/chrome_pages.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/views/controls/label.h"
 #include "ui/views/controls/link.h"
 #include "ui/views/layout/grid_layout.h"
 #include "ui/views/layout/layout_constants.h"
+#include "ui/views/widget/widget.h"
 
 namespace {
 const int kAnchorVerticalInset = 5;
 const int kTopInset = 1;
 const int kLeftInset = 2;
 const int kBottomInset = 7;
 const int kRightInset = 2;
 }  // namespace
 
 namespace first_run {
@@ skipping 67 matching lines @@
 FirstRunBubble::~FirstRunBubble() {
 }
 
 void FirstRunBubble::LinkClicked(views::Link* source, int event_flags) {
   first_run::LogFirstRunMetric(first_run::FIRST_RUN_BUBBLE_CHANGE_INVOKED);
 
   GetWidget()->Close();
   if (browser_)
     chrome::ShowSearchEngineSettings(browser_);
 }