Convert //cc from scoped_ptr to std::unique_ptr.

cc/debug/frame_rate_counter.cc

 // Copyright 2012 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 "cc/debug/frame_rate_counter.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <limits>
 
+#include "base/memory/ptr_util.h"
 #include "base/metrics/histogram.h"
 #include "cc/trees/proxy.h"
 
 namespace cc {
 
 // The following constants are measured in seconds.
 
 // Two thresholds (measured in seconds) that describe what is considered to be a
 // "no-op frame" that should not be counted.
 // - if the frame is too fast, then given our compositor implementation, the
 // frame probably was a no-op and did not draw.
 // - if the frame is too slow, then there is probably not animating content, so
 // we should not pollute the average.
 static const double kFrameTooFast = 1.0 / 70.0;
 static const double kFrameTooSlow = 1.5;
 
 // If a frame takes longer than this threshold (measured in seconds) then we
 // (naively) assume that it missed a screen refresh; that is, we dropped a
 // frame.
 // TODO(brianderson): Determine this threshold based on monitor refresh rate,
 // crbug.com/138642.
 static const double kDroppedFrameTime = 1.0 / 50.0;
 
 // static
-scoped_ptr<FrameRateCounter> FrameRateCounter::Create(bool has_impl_thread) {
-  return make_scoped_ptr(new FrameRateCounter(has_impl_thread));
+std::unique_ptr<FrameRateCounter> FrameRateCounter::Create(
+    bool has_impl_thread) {
+  return base::WrapUnique(new FrameRateCounter(has_impl_thread));
 }
 
 base::TimeDelta FrameRateCounter::RecentFrameInterval(size_t n) const {
   DCHECK_GT(n, 0u);
   DCHECK_LT(n, ring_buffer_.BufferSize());
   return ring_buffer_.ReadBuffer(n) - ring_buffer_.ReadBuffer(n - 1);
 }
 
 FrameRateCounter::FrameRateCounter(bool has_impl_thread)
     : has_impl_thread_(has_impl_thread), dropped_frame_count_(0) {}
@@ skipping 93 matching lines @@
 
   if (frame_count) {
     DCHECK_GT(frame_times_total, 0.0);
     average_fps = frame_count / frame_times_total;
   }
 
   return average_fps;
 }
 
 }  // namespace cc