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-rw-r--r--chromium/cc/scheduler/rolling_time_delta_history.cc65
1 files changed, 0 insertions, 65 deletions
diff --git a/chromium/cc/scheduler/rolling_time_delta_history.cc b/chromium/cc/scheduler/rolling_time_delta_history.cc
deleted file mode 100644
index 8d8bba5032f..00000000000
--- a/chromium/cc/scheduler/rolling_time_delta_history.cc
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright 2013 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 <cmath>
-
-#include "cc/scheduler/rolling_time_delta_history.h"
-
-namespace cc {
-
-RollingTimeDeltaHistory::RollingTimeDeltaHistory(size_t max_size)
- : max_size_(max_size) {
-}
-
-RollingTimeDeltaHistory::~RollingTimeDeltaHistory() {
-}
-
-void RollingTimeDeltaHistory::InsertSample(base::TimeDelta time) {
- if (max_size_ == 0)
- return;
-
- if (sample_set_.size() == max_size_) {
- sample_set_.erase(chronological_sample_deque_.front());
- chronological_sample_deque_.pop_front();
- }
-
- TimeDeltaMultiset::iterator it = sample_set_.insert(time);
- chronological_sample_deque_.push_back(it);
-}
-
-void RollingTimeDeltaHistory::Clear() {
- chronological_sample_deque_.clear();
- sample_set_.clear();
-}
-
-base::TimeDelta RollingTimeDeltaHistory::Percentile(double percent) const {
- if (sample_set_.size() == 0)
- return base::TimeDelta();
-
- double fraction = percent / 100.0;
-
- if (fraction <= 0.0)
- return *(sample_set_.begin());
-
- if (fraction >= 1.0)
- return *(sample_set_.rbegin());
-
- size_t num_smaller_samples =
- static_cast<size_t>(std::ceil(fraction * sample_set_.size())) - 1;
-
- if (num_smaller_samples > sample_set_.size() / 2) {
- size_t num_larger_samples = sample_set_.size() - num_smaller_samples - 1;
- TimeDeltaMultiset::const_reverse_iterator it = sample_set_.rbegin();
- for (size_t i = 0; i < num_larger_samples; i++)
- it++;
- return *it;
- }
-
- TimeDeltaMultiset::const_iterator it = sample_set_.begin();
- for (size_t i = 0; i < num_smaller_samples; i++)
- it++;
- return *it;
-}
-
-} // namespace cc