Refactoring timing info for ServiceWorker controlled requests [1/3]

public/platform/WebURLLoadTiming.h

Index: public/platform/WebURLLoadTiming.h
diff --git a/public/platform/WebURLLoadTiming.h b/public/platform/WebURLLoadTiming.h
index 5d91af8bc838932e08560f57415953fc7300556b..892a768bf647e4116f77af375ba43729cbf5dea3 100644
--- a/public/platform/WebURLLoadTiming.h
+++ b/public/platform/WebURLLoadTiming.h
@@ -77,12 +77,18 @@ public:
     BLINK_PLATFORM_EXPORT double connectEnd() const;
     BLINK_PLATFORM_EXPORT void setConnectEnd(double);
 
+    BLINK_PLATFORM_EXPORT double workerStart() const;
+    BLINK_PLATFORM_EXPORT void setWorkerStart(double);
+
+    // TODO(ksakamoto): Deprecated, remove them. crbug.com/465640
     BLINK_PLATFORM_EXPORT double serviceWorkerFetchStart() const;
     BLINK_PLATFORM_EXPORT void setServiceWorkerFetchStart(double);
 
+    // TODO(ksakamoto): Deprecated, remove them. crbug.com/465640
     BLINK_PLATFORM_EXPORT double serviceWorkerFetchReady() const;
     BLINK_PLATFORM_EXPORT void setServiceWorkerFetchReady(double);
 
+    // TODO(ksakamoto): Deprecated, remove them. crbug.com/465640
     BLINK_PLATFORM_EXPORT double serviceWorkerFetchEnd() const;
     BLINK_PLATFORM_EXPORT void setServiceWorkerFetchEnd(double);