Let TRACE_EVENT_XXX_WITH_TIMESTAMP accept TimeTicks instead of int64_t

third_party/WebKit/Source/platform/TraceEvent.h

Index: third_party/WebKit/Source/platform/TraceEvent.h
diff --git a/third_party/WebKit/Source/platform/TraceEvent.h b/third_party/WebKit/Source/platform/TraceEvent.h
index e6db51e3e05ff05e437c0aca273ef11aa3f52684..ba728237309bdb4e41e059f04f0b6e31c8990a56 100644
--- a/third_party/WebKit/Source/platform/TraceEvent.h
+++ b/third_party/WebKit/Source/platform/TraceEvent.h
@@ -27,11 +27,14 @@ namespace TraceEvent {
 
 using base::trace_event::TraceScopedTrackableObject;
 
-inline int64_t toTraceTimestamp(double seconds)
+inline base::TimeTicks toTraceTimestamp(double seconds)
 {
-    return (base::TimeTicks() + base::TimeDelta::FromSecondsD(seconds)).ToInternalValue();
+    return base::TimeTicks() + base::TimeDelta::FromSecondsD(seconds);
 }
 
+// This is to avoid error of passing a chromium time internal value.
+void toTraceTimestamp(int64_t);
+
 } // namespace TraceEvent
 } // namespace blink