Index: chrome/browser/metrics/process_memory_metrics_emitter.h |
diff --git a/chrome/browser/metrics/process_memory_metrics_emitter.h b/chrome/browser/metrics/process_memory_metrics_emitter.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..9edcd027bd2a44158770d4861e494ce59b72d110 |
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+++ b/chrome/browser/metrics/process_memory_metrics_emitter.h |
@@ -0,0 +1,43 @@ |
+// Copyright 2017 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. |
+ |
+#ifndef CHROME_BROWSER_METRICS_PROCESS_MEMORY_METRICS_EMITTER_H_ |
+#define CHROME_BROWSER_METRICS_PROCESS_MEMORY_METRICS_EMITTER_H_ |
+ |
+#include "base/memory/ref_counted.h" |
+#include "services/resource_coordinator/public/interfaces/memory/memory_instrumentation.mojom.h" |
+ |
+// This class asynchronously fetches memory metrics for each process, and then |
+// emits UMA metrics from those metrics. |
+// Each instance is self-owned, and will delete itself once it has finished |
+// emitting metrics. |
+// This class is an analog to MetricsMemoryDetails, but uses the resource |
+// coordinator service to fetch data, rather than doing all the processing |
+// manually. |
+class ProcessMemoryMetricsEmitter |
+ : public base::RefCountedThreadSafe<ProcessMemoryMetricsEmitter> { |
+ public: |
+ ProcessMemoryMetricsEmitter(); |
+ |
+ // This must be called on the main thread of the browser process. |
+ void FetchAndEmitProcessMemoryMetrics(); |
+ |
+ protected: |
+ virtual ~ProcessMemoryMetricsEmitter(); |
+ |
+ // Virtual for testing. |
+ virtual void ReceivedMemoryDump( |
+ uint64_t dump_guid, |
+ bool success, |
+ memory_instrumentation::mojom::GlobalMemoryDumpPtr ptr); |
+ |
+ private: |
+ friend class base::RefCountedThreadSafe<ProcessMemoryMetricsEmitter>; |
+ |
+ memory_instrumentation::mojom::CoordinatorPtr coordinator_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(ProcessMemoryMetricsEmitter); |
+}; |
+ |
+#endif // CHROME_BROWSER_METRICS_PROCESS_MEMORY_METRICS_EMITTER_H_ |