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..3cd16460b521fb7c322e464c2085b8c437fc6cb7 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 reportResourceTiming(const ResourceTimingInfo&) { }

[kinuko, 2015/06/22 07:01:00]

Can we add a comment? It's not obvious whom this method reports the timing. (At
RawResource layer it's slightly more obvious since its client has corresponding
method but at Resource layer it looks a bit puzzling...)

[Kunihiko Sakamoto, 2015/06/22 09:49:56]

Added a comment. Also renamed it to more verbose name,
reportResourceTimingToWorker, hoping to make it clearer.

+
     // Sets the serialized metadata retrieved from the platform's cache.
     virtual void setSerializedCachedMetadata(const char*, size_t);