Move most of the component updater artifacts to update_client.

components/update_client/request_sender.cc

Index: components/update_client/request_sender.cc
diff --git a/components/update_client/request_sender.cc b/components/update_client/request_sender.cc
new file mode 100644
index 0000000000000000000000000000000000000000..726c2faea6d23174d9ccb80048832106033a6e9d
--- /dev/null
+++ b/components/update_client/request_sender.cc
@@ -0,0 +1,70 @@
+// 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/request_sender.h"
+
+#include "base/bind.h"
+#include "base/bind_helpers.h"
+#include "base/location.h"
+#include "base/logging.h"
+#include "base/single_thread_task_runner.h"
+#include "base/thread_task_runner_handle.h"
+#include "components/update_client/configurator.h"
+#include "components/update_client/utils.h"
+#include "net/url_request/url_fetcher.h"
+
+namespace update_client {
+
+RequestSender::RequestSender(const Configurator& config) : config_(config) {
+}
+
+RequestSender::~RequestSender() {
+  DCHECK(thread_checker_.CalledOnValidThread());
+}
+
+void RequestSender::Send(const std::string& request_string,
+                         const std::vector<GURL>& urls,
+                         const RequestSenderCallback& request_sender_callback) {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  if (urls.empty()) {
+    request_sender_callback.Run(NULL);
+    return;
+  }
+
+  request_string_ = request_string;
+  urls_ = urls;
+  request_sender_callback_ = request_sender_callback;
+
+  cur_url_ = urls_.begin();
+
+  SendInternal();
+}
+
+void RequestSender::SendInternal() {
+  DCHECK(cur_url_ != urls_.end());
+  DCHECK(cur_url_->is_valid());
+  DCHECK(thread_checker_.CalledOnValidThread());
+
+  url_fetcher_.reset(SendProtocolRequest(*cur_url_, request_string_, this,
+                                         config_.RequestContext()));
+}
+
+void RequestSender::OnURLFetchComplete(const net::URLFetcher* source) {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  if (GetFetchError(*source) == 0) {
+    request_sender_callback_.Run(source);
+    return;
+  }
+
+  if (++cur_url_ != urls_.end() &&
+      base::ThreadTaskRunnerHandle::Get()->PostTask(
+          FROM_HERE,
+          base::Bind(&RequestSender::SendInternal, base::Unretained(this)))) {
+    return;
+  }
+
+  request_sender_callback_.Run(source);
+}
+
+}  // namespace update_client