Fixed playing video in component extensions.

net/url_request/url_range_request_job.cc

Index: net/url_request/url_range_request_job.cc
diff --git a/net/url_request/url_range_request_job.cc b/net/url_request/url_range_request_job.cc
new file mode 100644
index 0000000000000000000000000000000000000000..95cb692dfb493d5d2ddbb16ffe8c88a469603a5b
--- /dev/null
+++ b/net/url_request/url_range_request_job.cc
@@ -0,0 +1,31 @@
+// Copyright 2013 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/url_request/url_range_request_job.h"
+
+#include "net/base/net_errors.h"
+#include "net/http/http_request_headers.h"
+#include "net/http/http_util.h"
+
+namespace net {
+
+URLRangeRequestJob::URLRangeRequestJob(URLRequest* request,
+    NetworkDelegate* delegate)
+    : URLRequestJob(request, delegate), range_parse_result_(OK) {
+}
+
+URLRangeRequestJob::~URLRangeRequestJob() {
+}
+
+void URLRangeRequestJob::SetExtraRequestHeaders(
+    const HttpRequestHeaders& headers) {
+  std::string range_header;
+  if (headers.GetHeader(HttpRequestHeaders::kRange, &range_header)) {
+    if (!HttpUtil::ParseRangeHeader(range_header, &ranges_)) {
+      range_parse_result_ = ERR_REQUEST_RANGE_NOT_SATISFIABLE;
+    }
+  }
+}
+
+}  // namespace net