Adds support for the DHCP portion of the WPAD (proxy auto-discovery) protocol.

net/proxy/mock_proxy_script_fetcher.cc

Index: net/proxy/mock_proxy_script_fetcher.cc
diff --git a/net/proxy/mock_proxy_script_fetcher.cc b/net/proxy/mock_proxy_script_fetcher.cc
new file mode 100644
index 0000000000000000000000000000000000000000..dede55583a43429965e52edf845eeabb90684e0a
--- /dev/null
+++ b/net/proxy/mock_proxy_script_fetcher.cc
@@ -0,0 +1,57 @@
+// 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 "net/proxy/mock_proxy_script_fetcher.h"
+
+#include "base/logging.h"
+#include "base/string16.h"
+#include "base/utf_string_conversions.h"
+#include "net/base/net_errors.h"
+
+namespace net {
+
+MockProxyScriptFetcher::MockProxyScriptFetcher()
+    : pending_request_callback_(NULL), pending_request_text_(NULL) {
+}
+
+// ProxyScriptFetcher implementation.
+int MockProxyScriptFetcher::Fetch(string16* text,
+                                  CompletionCallback* callback) {
+  DCHECK(!has_pending_request());
+
+  // Save the caller's information, and have them wait.
+  pending_request_callback_ = callback;
+  pending_request_text_ = text;
+  return ERR_IO_PENDING;
+}
+
+void MockProxyScriptFetcher::NotifyFetchCompletion(
+    int result, const std::string& ascii_text) {
+  DCHECK(has_pending_request());
+  *pending_request_text_ = ASCIIToUTF16(ascii_text);
+  CompletionCallback* callback = pending_request_callback_;
+  pending_request_callback_ = NULL;
+  callback->Run(result);
+}
+
+void MockProxyScriptFetcher::Cancel() {
+}
+
+URLRequestContext* MockProxyScriptFetcher::GetRequestContext() const {
+  return NULL;
+}
+
+void MockProxyScriptFetcher::SetURL(const GURL& url) {
+  pending_request_url_ = url;
+}
+
+const GURL& MockProxyScriptFetcher::pending_request_url() const {
+  return pending_request_url_;
+}
+
+bool MockProxyScriptFetcher::has_pending_request() const {
+  return pending_request_callback_ != NULL;
+}
+
+}  // namespace net