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| 1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "cc/debug/frame_rate_counter.h" | 5 #include "cc/debug/frame_rate_counter.h" |
| 6 | 6 |
| 7 #include <stddef.h> |
| 8 |
| 7 #include <algorithm> | 9 #include <algorithm> |
| 8 #include <limits> | 10 #include <limits> |
| 9 | 11 |
| 10 #include "base/metrics/histogram.h" | 12 #include "base/metrics/histogram.h" |
| 11 #include "cc/trees/proxy.h" | 13 #include "cc/trees/proxy.h" |
| 12 | 14 |
| 13 namespace cc { | 15 namespace cc { |
| 14 | 16 |
| 15 // The following constants are measured in seconds. | 17 // The following constants are measured in seconds. |
| 16 | 18 |
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| 139 | 141 |
| 140 if (frame_count) { | 142 if (frame_count) { |
| 141 DCHECK_GT(frame_times_total, 0.0); | 143 DCHECK_GT(frame_times_total, 0.0); |
| 142 average_fps = frame_count / frame_times_total; | 144 average_fps = frame_count / frame_times_total; |
| 143 } | 145 } |
| 144 | 146 |
| 145 return average_fps; | 147 return average_fps; |
| 146 } | 148 } |
| 147 | 149 |
| 148 } // namespace cc | 150 } // namespace cc |
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