Move component updater artifacts into component_updater namespace.

chrome/browser/component_updater/update_checker.cc

 // Copyright 2014 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/component_updater/update_checker.h"
 
 #include "base/compiler_specific.h"
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/component_updater/component_updater_utils.h"
 #include "chrome/browser/component_updater/crx_update_item.h"
@@ skipping 114 matching lines @@
 
   return true;
 }
 
 void UpdateCheckerImpl::OnURLFetchComplete(const net::URLFetcher* source) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DCHECK(url_fetcher_.get() == source);
 
   int error = 0;
   std::string error_message;
-  component_updater::UpdateResponse update_response;
+  UpdateResponse update_response;
 
-  if (component_updater::FetchSuccess(*source)) {
+  if (FetchSuccess(*source)) {
     std::string xml;
     source->GetResponseAsString(&xml);
     if (!update_response.Parse(xml)) {
       error = -1;
       error_message = update_response.errors();
     }
   } else {
-    error = component_updater::GetFetchError(*source);
+    error = GetFetchError(*source);
     error_message.assign("network error");
   }
 
   url_fetcher_.reset();
   update_check_callback_.Run(error, error_message, update_response.results());
 }
 
 }  // namespace component_updater