Move BrowserThread to content namespace.

chrome/browser/extensions/extension_settings_storage_unittest.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 "chrome/browser/extensions/extension_settings_storage_unittest.h"
 
 #include "base/json/json_writer.h"
 #include "base/file_util.h"
 #include "base/values.h"
 
+using content::BrowserThread;
+
 namespace {
 
 // Gets the pretty-printed JSON for a value.
 std::string GetJSON(const Value& value) {
   std::string json;
   base::JSONWriter::Write(&value, true, &json);
   return json;
 }
 
 // Pretty-prints a set of strings.
@@ skipping 464 matching lines @@
   complex_changed_dict.Set(key3_, val3_->DeepCopy());
   complex_changed_dict.Set("qwerty", val3_->DeepCopy());
   complex_set.clear();
   complex_set.insert(key3_);
   complex_set.insert("qwerty");
   EXPECT_PRED_FORMAT4(SettingsEq,
       NULL, &complex_changed_dict, &complex_set, storage_->Clear());
   EXPECT_PRED_FORMAT4(SettingsEq,
       NULL, empty_dict_.get(), &empty_set_, storage_->Clear());
 }