Enable ServerTiming support

third_party/WebKit/Source/core/timing/PerformanceObserver.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/timing/PerformanceObserver.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/PerformanceObserverCallback.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/timing/PerformanceBase.h"
@@ skipping 51 matching lines @@
 }
 
 void PerformanceObserver::disconnect() {
   if (performance_) {
     performance_->UnregisterPerformanceObserver(*this);
   }
   performance_entries_.Clear();
   is_registered_ = false;
 }
 
+void PerformanceObserver::MaybeEnqueuePerformanceEntry(
+    PerformanceEntry& entry) {
+  if (FilterOptions() & entry.EntryTypeEnum()) {
+    EnqueuePerformanceEntry(entry);
+  }
+}
+
 void PerformanceObserver::EnqueuePerformanceEntry(PerformanceEntry& entry) {
   ASSERT(IsMainThread());
   performance_entries_.push_back(&entry);
   if (performance_)
     performance_->ActivateObserver(*this);
 }
 
 bool PerformanceObserver::ShouldBeSuspended() const {
   return execution_context_->IsContextSuspended();
 }
@@ skipping 16 matching lines @@
   visitor->Trace(callback_);
   visitor->Trace(performance_);
   visitor->Trace(performance_entries_);
 }
 
 DEFINE_TRACE_WRAPPERS(PerformanceObserver) {
   visitor->TraceWrappers(callback_);
 }
 
 }  // namespace blink