Componentize sad_tab

components/sad_tab/sad_tab.cc

 // Copyright 2013 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/sad_tab.h"
+#include "components/sad_tab/sad_tab.h"
 
-namespace chrome {
+namespace sad_tab {
 
 // static
 bool SadTab::ShouldShow(base::TerminationStatus status) {
   return (status == base::TERMINATION_STATUS_ABNORMAL_TERMINATION ||
           status == base::TERMINATION_STATUS_PROCESS_WAS_KILLED ||
           status == base::TERMINATION_STATUS_PROCESS_CRASHED);
 }
 
-}  // namespace chrome
+}  // namespace sad_tab