[GRC] Tab CPU Usage Observer

chrome/browser/resource_coordinator/resource_coordinator_web_contents_observer.h

Index: chrome/browser/resource_coordinator/resource_coordinator_web_contents_observer.h
diff --git a/chrome/browser/resource_coordinator/resource_coordinator_web_contents_observer.h b/chrome/browser/resource_coordinator/resource_coordinator_web_contents_observer.h
index 16d9e7c7bc16633268e1976a90f8eb1551977819..5a0bd150662a762479e016f62d4499a462c1d000 100644
--- a/chrome/browser/resource_coordinator/resource_coordinator_web_contents_observer.h
+++ b/chrome/browser/resource_coordinator/resource_coordinator_web_contents_observer.h
@@ -5,6 +5,8 @@
 #ifndef CHROME_BROWSER_RESOURCE_COORDINATOR_RESOURCE_COORDINATOR_WEB_CONTENTS_OBSERVER_H_
 #define CHROME_BROWSER_RESOURCE_COORDINATOR_RESOURCE_COORDINATOR_WEB_CONTENTS_OBSERVER_H_
 
+#include <stdint.h>
+
 #include <memory>
 
 #include "base/macros.h"
@@ -13,6 +15,11 @@
 #include "services/resource_coordinator/public/cpp/resource_coordinator_interface.h"
 #include "services/resource_coordinator/public/interfaces/service_callbacks.mojom.h"
 
+namespace ukm {
+typedef int64_t SourceId;
+class UkmEntryBuilder;
+}  // namespace ukm
+
 class ResourceCoordinatorWebContentsObserver
     : public content::WebContentsObserver,
       public content::WebContentsUserData<
@@ -36,6 +43,7 @@ class ResourceCoordinatorWebContentsObserver
 
   void EnsureUkmRecorderInterface();
   void MaybeSetUkmRecorderInterface(bool ukm_recorder_already_initialized);
+  void UpdateUkmRecorder();
 
  private:
   explicit ResourceCoordinatorWebContentsObserver(
@@ -46,6 +54,8 @@ class ResourceCoordinatorWebContentsObserver
 
   std::unique_ptr<resource_coordinator::ResourceCoordinatorInterface>
       tab_resource_coordinator_;
+  ukm::SourceId ukm_source_id_;
+  std::string url_;
 
   resource_coordinator::mojom::ServiceCallbacksPtr service_callbacks_;