DevTools: remove PerformanceMonitor::HandlerCall, migrate to the new scoped probes.

third_party/WebKit/Source/core/frame/DOMTimer.cpp

Index: third_party/WebKit/Source/core/frame/DOMTimer.cpp
diff --git a/third_party/WebKit/Source/core/frame/DOMTimer.cpp b/third_party/WebKit/Source/core/frame/DOMTimer.cpp
index 427b26cee32bb11e26c17efb3de21d89632cf31a..9bb01f9b26686bde129f0a3bea1253756feed1b7 100644
--- a/third_party/WebKit/Source/core/frame/DOMTimer.cpp
+++ b/third_party/WebKit/Source/core/frame/DOMTimer.cpp
@@ -28,7 +28,6 @@
 
 #include "core/dom/ExecutionContext.h"
 #include "core/dom/TaskRunnerHelper.h"
-#include "core/frame/PerformanceMonitor.h"
 #include "core/inspector/InspectorInstrumentation.h"
 #include "core/inspector/InspectorTraceEvents.h"
 #include "platform/instrumentation/tracing/TraceEvent.h"
@@ -143,8 +142,9 @@ void DOMTimer::fired() {
 
   TRACE_EVENT1("devtools.timeline", "TimerFire", "data",
                InspectorTimerFireEvent::data(context, m_timeoutID));
-  PerformanceMonitor::HandlerCall handlerCall(
-      context, repeatInterval() ? "setInterval" : "setTimeout", true);
+  probe::UserCallback probe(context,
+                            repeatInterval() ? "setInterval" : "setTimeout",
+                            AtomicString(), true);
   probe::AsyncTask asyncTask(context, this, "timerFired");
 
   // Simple case for non-one-shot timers.