Implement Referrer-Policy header for workers

third_party/WebKit/Source/core/workers/WorkerScriptLoader.cpp

Index: third_party/WebKit/Source/core/workers/WorkerScriptLoader.cpp
diff --git a/third_party/WebKit/Source/core/workers/WorkerScriptLoader.cpp b/third_party/WebKit/Source/core/workers/WorkerScriptLoader.cpp
index 7bdabf14214438d6f7769914afbec7b71d412dff..fa24d5aa93e098b8db039cf6afbc1fdf2a2c336c 100644
--- a/third_party/WebKit/Source/core/workers/WorkerScriptLoader.cpp
+++ b/third_party/WebKit/Source/core/workers/WorkerScriptLoader.cpp
@@ -33,6 +33,7 @@
 #include "core/origin_trials/OriginTrialContext.h"
 #include "core/workers/WorkerGlobalScope.h"
 #include "platform/HTTPNames.h"
+#include "platform/RuntimeEnabledFeatures.h"
 #include "platform/network/ContentSecurityPolicyResponseHeaders.h"
 #include "platform/network/NetworkUtils.h"
 #include "platform/network/ResourceResponse.h"
@@ -137,6 +138,9 @@ void WorkerScriptLoader::didReceiveResponse(unsigned long identifier, const Reso
     m_responseURL = response.url();
     m_responseEncoding = response.textEncodingName();
     m_appCacheID = response.appCacheID();
+
+    if (RuntimeEnabledFeatures::referrerPolicyHeaderEnabled())
+        m_referrerPolicy = response.httpHeaderField(HTTPNames::Referrer_Policy);
     processContentSecurityPolicy(response);
     m_originTrialTokens = OriginTrialContext::parseHeaderValue(response.httpHeaderField(HTTPNames::Origin_Trial));