Add StateOn{Moderate,Critical}NotificationReceived metrics

content/browser/memory/memory_coordinator.h

Index: content/browser/memory/memory_coordinator.h
diff --git a/content/browser/memory/memory_coordinator.h b/content/browser/memory/memory_coordinator.h
index 682f1ba628142c1a9a001c14a97179a1c8b5c3a9..a62fdcd31c3d9a49c47bdfd30a327ecfa5842981 100644
--- a/content/browser/memory/memory_coordinator.h
+++ b/content/browser/memory/memory_coordinator.h
@@ -6,6 +6,7 @@
 #define CONTENT_BROWSER_MEMORY_MEMORY_COORDINATOR_H_
 
 #include "base/memory/memory_coordinator_client_registry.h"
+#include "base/memory/memory_pressure_monitor.h"
 #include "base/process/process_handle.h"
 #include "content/common/content_export.h"
 #include "content/common/memory_coordinator.mojom.h"
@@ -52,6 +53,11 @@ class CONTENT_EXPORT MemoryCoordinator {
   // if the process is not tracked by this coordinator.
   mojom::MemoryState GetMemoryState(int render_process_id) const;
 
+  // Records memory pressure notifications. Called by MemoryPressureMonitor.
+  // TODO(bashi): Remove this when MemoryPressureMonitor is retired.
+  void RecordMemoryPressure(
+      base::MemoryPressureMonitor::MemoryPressureLevel level);
+
   // Called when ChildMemoryCoordinator calls AddChild().
   virtual void OnChildAdded(int render_process_id) {}