Expose WebServiceWorkerNetworkProvider on DataSource

third_party/WebKit/Source/platform/exported/WebURLRequest.cpp

Index: third_party/WebKit/Source/platform/exported/WebURLRequest.cpp
diff --git a/third_party/WebKit/Source/platform/exported/WebURLRequest.cpp b/third_party/WebKit/Source/platform/exported/WebURLRequest.cpp
index 893a4163a73ff82bcf2cb33a738a843c03ad5fc3..88b0ea01005b5739d275ec38abf5114ed6bd02cb 100644
--- a/third_party/WebKit/Source/platform/exported/WebURLRequest.cpp
+++ b/third_party/WebKit/Source/platform/exported/WebURLRequest.cpp
@@ -364,7 +364,8 @@ WebURLRequest::ExtraData* WebURLRequest::getExtraData() const {
 }
 
 void WebURLRequest::setExtraData(WebURLRequest::ExtraData* extraData) {
-  m_resourceRequest->setExtraData(ExtraDataContainer::create(extraData));
+  if (extraData != getExtraData())

[kinuko, 2017/03/10 11:35:46]

I added this line so that 'data = getExtraData()' and then 'setExtraData(data)'
still work (it was a bit unintuitive it was a destructive operation...)

+    m_resourceRequest->setExtraData(ExtraDataContainer::create(extraData));
 }
 
 ResourceRequest& WebURLRequest::toMutableResourceRequest() {