Revert of Initialize libxml to observe effects on the Android crash.

components/update_client/update_client.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 "components/update_client/update_client.h"
 
 #include <algorithm>
 #include <queue>
 #include <set>
 #include <utility>
@@ skipping 18 matching lines @@
 #include "components/update_client/persisted_data.h"
 #include "components/update_client/ping_manager.h"
 #include "components/update_client/task_send_uninstall_ping.h"
 #include "components/update_client/task_update.h"
 #include "components/update_client/update_checker.h"
 #include "components/update_client/update_client_errors.h"
 #include "components/update_client/update_client_internal.h"
 #include "components/update_client/update_engine.h"
 #include "components/update_client/update_response.h"
 #include "components/update_client/utils.h"
-#include "third_party/libxml/src/include/libxml/parser.h"
 #include "url/gurl.h"
 
 namespace update_client {
 
 CrxUpdateItem::CrxUpdateItem() : state(ComponentState::kNew) {}
 
 CrxUpdateItem::~CrxUpdateItem() {
 }
 
 CrxUpdateItem::CrxUpdateItem(const CrxUpdateItem& other) = default;
@@ skipping 21 matching lines @@
     CrxDownloader::Factory crx_downloader_factory)
     : is_stopped_(false),
       config_(config),
       ping_manager_(std::move(ping_manager)),
       update_engine_(base::MakeUnique<UpdateEngine>(
           config,
           update_checker_factory,
           crx_downloader_factory,
           ping_manager_.get(),
           base::Bind(&UpdateClientImpl::NotifyObservers,
-                     base::Unretained(this)))) {
-  // Temporary change while investigating crbug.com/717889.
-  xmlInitParser();
-}
+                     base::Unretained(this)))) {}
 
 UpdateClientImpl::~UpdateClientImpl() {
   DCHECK(thread_checker_.CalledOnValidThread());
 
   DCHECK(task_queue_.empty());
   DCHECK(tasks_.empty());
 
   config_ = nullptr;
 }
 
@@ skipping 151 matching lines @@
   return base::MakeShared<UpdateClientImpl>(
       config, base::MakeUnique<PingManager>(config), &UpdateChecker::Create,
       &CrxDownloader::Create);
 }
 
 void RegisterPrefs(PrefRegistrySimple* registry) {
   PersistedData::RegisterPrefs(registry);
 }
 
 }  // namespace update_client