[instrumentation] Rename InspectorInstrumentation into CoreProbes

third_party/WebKit/Source/platform/probe/PlatformProbes.cpp

 // Copyright 2017 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.
 
-#ifndef PlatformTraceEventsAgent_h
-#define PlatformTraceEventsAgent_h
-
-#include "platform/PlatformExport.h"
-#include "platform/heap/Heap.h"
-#include "platform/instrumentation/tracing/TraceEvent.h"
+#include "platform/probe/PlatformProbes.h"
 
 namespace blink {
+namespace probe {
 
-namespace probe {
-class PlatformSendRequest;
+double ProbeBase::captureStartTime() const {
+  if (!m_startTime)
+    m_startTime = monotonicallyIncreasingTime();
+  return m_startTime;
 }
 
-class PLATFORM_EXPORT PlatformTraceEventsAgent
-    : public GarbageCollected<PlatformTraceEventsAgent> {
- public:
-  DEFINE_INLINE_TRACE() {}
+double ProbeBase::captureEndTime() const {
+  if (!m_endTime)
+    m_endTime = monotonicallyIncreasingTime();
+  return m_endTime;
+}
 
-  void will(const probe::PlatformSendRequest&);
-  void did(const probe::PlatformSendRequest&);
-};
+double ProbeBase::duration() const {
+  DCHECK(m_startTime);
+  return captureEndTime() - m_startTime;
+}
 
+}  // namespace probe
 }  // namespace blink
-
-#endif  // !defined(PlatformTraceEventsAgent_h)