[ServiceWorker] Fills the referrer of WebServiceWorkerRequest.

This change depends on http://crrev.com/329853012 

The tests for this change will be added in the LayoutTests of Blink: http://crrev.com/373713004


BUG=373120

Review URL: https://codereview.chromium.org/373713003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@282283 0039d316-1c4b-4281-b951-d872f2087c98

content/browser/service_worker/service_worker_browsertest.cc

@@ -456,6 +456,7 @@ class ServiceWorkerVersionBrowserTest : public ServiceWorkerBrowserTest {
         embedded_test_server()->GetURL("/service_worker/empty.html"),
         "GET",
         std::map<std::string, std::string>(),
+        GURL(""),
         false);
     version_->SetStatus(ServiceWorkerVersion::ACTIVATED);
     version_->DispatchFetchEvent(

content/browser/service_worker/service_worker_fetch_dispatcher.cc

@@ -24,6 +24,7 @@ ServiceWorkerFetchDispatcher::ServiceWorkerFetchDispatcher(
   const net::HttpRequestHeaders& headers = request->extra_request_headers();
   for (net::HttpRequestHeaders::Iterator it(headers); it.GetNext();)
     request_.headers[it.name()] = it.value();
+  request_.referrer = GURL(request->referrer());
   const ResourceRequestInfo* info = ResourceRequestInfo::ForRequest(request);
   if (info) {
     request_.is_reload = PageTransitionCoreTypeIs(info->GetPageTransition(),

content/common/service_worker/service_worker_messages.h

@@ -31,6 +31,7 @@ IPC_STRUCT_TRAITS_BEGIN(content::ServiceWorkerFetchRequest)
   IPC_STRUCT_TRAITS_MEMBER(url)
   IPC_STRUCT_TRAITS_MEMBER(method)
   IPC_STRUCT_TRAITS_MEMBER(headers)
+  IPC_STRUCT_TRAITS_MEMBER(referrer)
   IPC_STRUCT_TRAITS_MEMBER(is_reload)
 IPC_STRUCT_TRAITS_END()
 

content/common/service_worker/service_worker_types.cc

@@ -13,8 +13,13 @@ ServiceWorkerFetchRequest::ServiceWorkerFetchRequest(
     const GURL& url,
     const std::string& method,
     const std::map<std::string, std::string>& headers,
+    const GURL& referrer,
     bool is_reload)
-    : url(url), method(method), headers(headers), is_reload(is_reload) {
+    : url(url),
+      method(method),
+      headers(headers),
+      referrer(referrer),
+      is_reload(is_reload) {
 }
 
 ServiceWorkerFetchRequest::~ServiceWorkerFetchRequest() {}

content/common/service_worker/service_worker_types.h

@@ -48,12 +48,14 @@ struct CONTENT_EXPORT ServiceWorkerFetchRequest {
   ServiceWorkerFetchRequest(const GURL& url,
                             const std::string& method,
                             const std::map<std::string, std::string>& headers,
+                            const GURL& referrer,
                             bool is_reload);
   ~ServiceWorkerFetchRequest();
 
   GURL url;
   std::string method;
   std::map<std::string, std::string> headers;
+  GURL referrer;
   bool is_reload;
 };
 

content/renderer/service_worker/service_worker_script_context.cc

@@ -10,6 +10,7 @@
 #include "content/common/service_worker/service_worker_messages.h"
 #include "content/renderer/service_worker/embedded_worker_context_client.h"
 #include "ipc/ipc_message.h"
+#include "third_party/WebKit/public/platform/WebReferrerPolicy.h"
 #include "third_party/WebKit/public/platform/WebServiceWorkerRequest.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 #include "third_party/WebKit/public/platform/WebURL.h"
@@ -135,6 +136,8 @@ void ServiceWorkerScriptContext::OnFetchEvent(
     webRequest.setHeader(blink::WebString::fromUTF8(it->first),
                          blink::WebString::fromUTF8(it->second));
   }
+  webRequest.setReferrer(blink::WebString::fromUTF8(request.referrer.spec()),
+                         blink::WebReferrerPolicyDefault);
   webRequest.setIsReload(request.is_reload);
   proxy_->dispatchFetchEvent(request_id, webRequest);
 }