[GRC] UKM Support

components/ukm/public/ukm_recorder.h

Index: components/ukm/public/ukm_recorder.h
diff --git a/components/ukm/public/ukm_recorder.h b/components/ukm/public/ukm_recorder.h
index bcb5a4d2df1fa21565e8ed486e12c950175e68aa..76d921c0c23c050578b83214a6811482486f648c 100644
--- a/components/ukm/public/ukm_recorder.h
+++ b/components/ukm/public/ukm_recorder.h
@@ -7,6 +7,8 @@
 
 #include <stddef.h>
 
+#include <memory>
+
 #include "base/callback.h"
 #include "base/feature_list.h"
 #include "base/macros.h"
@@ -30,6 +32,10 @@ class RenderFrameImpl;
 class RenderWidgetHostLatencyTracker;
 }
 
+namespace resource_coordinator {
+class CoordinationUnitManager;
+}
+
 namespace translate {
 class TranslateRankerImpl;
 }
@@ -85,6 +91,7 @@ class UKM_EXPORT UkmRecorder {
   friend content::RenderFrameImpl;
   friend content::RenderWidgetHostLatencyTracker;
   friend password_manager::PasswordFormMetricsRecorder;
+  friend resource_coordinator::CoordinationUnitManager;
   FRIEND_TEST_ALL_PREFIXES(UkmServiceTest, AddEntryWithEmptyMetrics);
   FRIEND_TEST_ALL_PREFIXES(UkmServiceTest, EntryBuilderAndSerialization);
   FRIEND_TEST_ALL_PREFIXES(UkmServiceTest,