Offer Resource Timing in workers

Source/core/fetch/Resource.h

Index: Source/core/fetch/Resource.h
diff --git a/Source/core/fetch/Resource.h b/Source/core/fetch/Resource.h
index 85465bd19c3a0b4a2dc6fa6c90cb3e45db24b5ec..ba8f7f3c7026e42fff0f2fd3583ddd599e3ced10 100644
--- a/Source/core/fetch/Resource.h
+++ b/Source/core/fetch/Resource.h
@@ -47,6 +47,7 @@ class CachedMetadata;
 class ResourceClient;
 class ResourcePtrBase;
 class ResourceFetcher;
+class ResourceTimingInfo;
 class InspectorResource;
 class ResourceLoader;
 class SecurityOrigin;
@@ -196,6 +197,8 @@ public:
     void setResponse(const ResourceResponse& response) { m_response = response; }
     const ResourceResponse& response() const { return m_response; }
 
+    virtual void reportResourceTimingToClients(const ResourceTimingInfo&) { }
+
     // Sets the serialized metadata retrieved from the platform's cache.
     virtual void setSerializedCachedMetadata(const char*, size_t);