Report 'timeOriginMicros' and 'timeExtentMicros' in Timeline and Profile service responses

runtime/vm/timeline.h

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_TIMELINE_H_
 #define VM_TIMELINE_H_
 
 #include "include/dart_tools_api.h"
 
 #include "vm/allocation.h"
@@ skipping 205 matching lines @@
   int64_t ThreadCPUTimeOrigin() const;
 
   int64_t TimeOrigin() const;
   int64_t AsyncId() const;
   int64_t TimeDuration() const;
   int64_t TimeEnd() const {
     ASSERT(IsFinishedDuration());
     return timestamp1_;
   }
 
+  // The lowest time value stored in this event.
+  int64_t LowTime() const;
+  // The highest time value stored in this event.
+  int64_t HighTime() const;
+
   void PrintJSON(JSONStream* stream) const;
 
   ThreadId thread() const {
     return thread_;
   }
 
   void set_thread(ThreadId tid) {
     thread_ = tid;
   }
 
@@ skipping 476 matching lines @@
   virtual void CompleteEvent(TimelineEvent* event) = 0;
   virtual TimelineEventBlock* GetHeadBlockLocked() = 0;
   virtual TimelineEventBlock* GetNewBlockLocked() = 0;
   virtual void Clear() = 0;
 
   // Utility method(s).
   void PrintJSONMeta(JSONArray* array) const;
   TimelineEvent* ThreadBlockStartEvent();
   void ThreadBlockCompleteEvent(TimelineEvent* event);
 
+  void ResetTimeTracking();
+  void ReportTime(int64_t micros);
+  int64_t TimeOriginMicros() const;
+  int64_t TimeExtentMicros() const;
+
   Mutex lock_;
   uintptr_t async_id_;
+  int64_t time_low_micros_;
+  int64_t time_high_micros_;
 
   friend class TimelineEvent;
   friend class TimelineEventBlockIterator;
   friend class TimelineStream;
   friend class TimelineTestHelper;
   friend class Timeline;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(TimelineEventRecorder);
 };
@@ skipping 138 matching lines @@
 
  private:
   TimelineEventBlock* current_;
   TimelineEventRecorder* recorder_;
 };
 
 
 }  // namespace dart
 
 #endif  // VM_TIMELINE_H_