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diff --git a/webrtc/modules/audio_processing/aec3/block_processor_metrics.h b/webrtc/modules/audio_processing/aec3/block_processor_metrics.h
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+++ b/webrtc/modules/audio_processing/aec3/block_processor_metrics.h
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+/*
+ *  Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef MODULES_AUDIO_PROCESSING_AEC3_BLOCK_PROCESSOR_METRICS_H_
+#define MODULES_AUDIO_PROCESSING_AEC3_BLOCK_PROCESSOR_METRICS_H_
+
+#include "rtc_base/constructor_magic.h"
+
+namespace webrtc {
+
+// Handles the reporting of metrics for the block_processor.
+class BlockProcessorMetrics {
+ public:
+  BlockProcessorMetrics() = default;
+
+  // Updates the metric with new capture data.
+  void UpdateCapture(bool underrun);
+
+  // Updates the metric with new render data.
+  void UpdateRender(bool overrun);
+
+  // Returns true if the metrics have just been reported, otherwise false.
+  bool MetricsReported() { return metrics_reported_; }
+
+ private:
+  // Resets the metrics.
+  void ResetMetrics();
+
+  int capture_block_counter_ = 0;
+  bool metrics_reported_ = false;
+  int render_buffer_underruns_ = 0;
+  int render_buffer_overruns_ = 0;
+  int buffer_render_calls_ = 0;
+
+  RTC_DISALLOW_COPY_AND_ASSIGN(BlockProcessorMetrics);
+};
+
+}  // namespace webrtc
+
+#endif  // MODULES_AUDIO_PROCESSING_AEC3_BLOCK_PROCESSOR_METRICS_H_