Pass null timing to webkit when no such data is available.

webkit/glue/weburlloader_impl.cc

 // 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.
 
 // An implementation of WebURLLoader in terms of ResourceLoaderBridge.
 
 #include "webkit/glue/weburlloader_impl.h"
 
 #include "base/file_path.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 177 matching lines @@
   response->setWasAlternateProtocolAvailable(
       info.was_alternate_protocol_available);
   response->setWasFetchedViaProxy(info.was_fetched_via_proxy);
   response->setRemoteIPAddress(
       WebString::fromUTF8(info.socket_address.host()));
   response->setRemotePort(info.socket_address.port());
   response->setConnectionID(info.connection_id);
   response->setConnectionReused(info.connection_reused);
   response->setDownloadFilePath(FilePathToWebString(info.download_file_path));
 
-  WebURLLoadTiming timing;
-  timing.initialize();
   const ResourceLoadTimingInfo& timing_info = info.load_timing;
-  timing.setRequestTime(timing_info.base_time.ToDoubleT());
-  timing.setProxyStart(timing_info.proxy_start);
-  timing.setProxyEnd(timing_info.proxy_end);
-  timing.setDNSStart(timing_info.dns_start);
-  timing.setDNSEnd(timing_info.dns_end);
-  timing.setConnectStart(timing_info.connect_start);
-  timing.setConnectEnd(timing_info.connect_end);
-  timing.setSSLStart(timing_info.ssl_start);
-  timing.setSSLEnd(timing_info.ssl_end);
-  timing.setSendStart(timing_info.send_start);
-  timing.setSendEnd(timing_info.send_end);
-  timing.setReceiveHeadersEnd(timing_info.receive_headers_end);
-  response->setLoadTiming(timing);
+  if (!timing_info.base_time.is_null()) {
+    WebURLLoadTiming timing;
+    timing.initialize();
+    timing.setRequestTime(timing_info.base_time.ToDoubleT());
+    timing.setProxyStart(timing_info.proxy_start);
+    timing.setProxyEnd(timing_info.proxy_end);
+    timing.setDNSStart(timing_info.dns_start);
+    timing.setDNSEnd(timing_info.dns_end);
+    timing.setConnectStart(timing_info.connect_start);
+    timing.setConnectEnd(timing_info.connect_end);
+    timing.setSSLStart(timing_info.ssl_start);
+    timing.setSSLEnd(timing_info.ssl_end);
+    timing.setSendStart(timing_info.send_start);
+    timing.setSendEnd(timing_info.send_end);
+    timing.setReceiveHeadersEnd(timing_info.receive_headers_end);
+    response->setLoadTiming(timing);
+  }
 
   if (info.devtools_info.get()) {
     WebHTTPLoadInfo load_info;
 
     load_info.setHTTPStatusCode(info.devtools_info->http_status_code);
     load_info.setHTTPStatusText(WebString::fromUTF8(
         info.devtools_info->http_status_text));
 
     const HeadersVector& request_headers = info.devtools_info->request_headers;
     for (HeadersVector::const_iterator it = request_headers.begin();
@@ skipping 524 matching lines @@
 
 void WebURLLoaderImpl::cancel() {
   context_->Cancel();
 }
 
 void WebURLLoaderImpl::setDefersLoading(bool value) {
   context_->SetDefersLoading(value);
 }
 
 }  // namespace webkit_glue