Remove unused GcTracer functions.

BUG=chromium:597310
LOG=NO

Review URL: https://codereview.chromium.org/1828743002

Cr-Commit-Position: refs/heads/master@{#35042}

src/heap/gc-tracer.cc

@@ -697,46 +697,6 @@ double GCTracer::MaxDuration(const EventBuffer& events) const {
 }
 
 
-double GCTracer::MeanIncrementalMarkingDuration() const {
-  if (cumulative_incremental_marking_steps_ == 0) return 0.0;
-
-  // We haven't completed an entire round of incremental marking, yet.
-  // Use data from GCTracer instead of data from event buffers.
-  if (incremental_mark_compactor_events_.empty()) {
-    return cumulative_incremental_marking_duration_ /
-           cumulative_incremental_marking_steps_;
-  }
-
-  int steps = 0;
-  double durations = 0.0;
-  EventBuffer::const_iterator iter = incremental_mark_compactor_events_.begin();
-  while (iter != incremental_mark_compactor_events_.end()) {
-    steps += iter->incremental_marking_steps;
-    durations += iter->incremental_marking_duration;
-    ++iter;
-  }
-
-  if (steps == 0) return 0.0;
-
-  return durations / steps;
-}
-
-
-double GCTracer::MaxIncrementalMarkingDuration() const {
-  // We haven't completed an entire round of incremental marking, yet.
-  // Use data from GCTracer instead of data from event buffers.
-  if (incremental_mark_compactor_events_.empty())
-    return longest_incremental_marking_step_;
-
-  double max_duration = 0.0;
-  EventBuffer::const_iterator iter = incremental_mark_compactor_events_.begin();
-  while (iter != incremental_mark_compactor_events_.end())
-    max_duration = Max(iter->longest_incremental_marking_step, max_duration);
-
-  return max_duration;
-}
-
-
 intptr_t GCTracer::IncrementalMarkingSpeedInBytesPerMillisecond() const {
   if (cumulative_incremental_marking_duration_ == 0.0) return 0;
 

src/heap/gc-tracer.h

@@ -376,42 +376,6 @@ class GCTracer {
     return cumulative_sweeping_duration_;
   }
 
-  // Compute the mean duration of the last scavenger events. Returns 0 if no
-  // events have been recorded.
-  double MeanScavengerDuration() const {
-    return MeanDuration(scavenger_events_);
-  }
-
-  // Compute the max duration of the last scavenger events. Returns 0 if no
-  // events have been recorded.
-  double MaxScavengerDuration() const { return MaxDuration(scavenger_events_); }
-
-  // Compute the mean duration of the last mark compactor events. Returns 0 if
-  // no events have been recorded.
-  double MeanMarkCompactorDuration() const {
-    return MeanDuration(mark_compactor_events_);
-  }
-
-  // Compute the max duration of the last mark compactor events. Return 0 if no
-  // events have been recorded.
-  double MaxMarkCompactorDuration() const {
-    return MaxDuration(mark_compactor_events_);
-  }
-
-  // Compute the mean duration of the last incremental mark compactor
-  // events. Returns 0 if no events have been recorded.
-  double MeanIncrementalMarkCompactorDuration() const {
-    return MeanDuration(incremental_mark_compactor_events_);
-  }
-
-  // Compute the mean step duration of the last incremental marking round.
-  // Returns 0 if no incremental marking round has been completed.
-  double MeanIncrementalMarkingDuration() const;
-
-  // Compute the max step duration of the last incremental marking round.
-  // Returns 0 if no incremental marking round has been completed.
-  double MaxIncrementalMarkingDuration() const;
-
   // Compute the average incremental marking speed in bytes/millisecond.
   // Returns 0 if no events have been recorded.
   intptr_t IncrementalMarkingSpeedInBytesPerMillisecond() const;