Add UMA metrics to phishguard pings

chrome/browser/safe_browsing/chrome_password_protection_service.h

Index: chrome/browser/safe_browsing/chrome_password_protection_service.h
diff --git a/chrome/browser/safe_browsing/chrome_password_protection_service.h b/chrome/browser/safe_browsing/chrome_password_protection_service.h
index 77bbc2fefeccffc4840389a055465301288b59a8..68e25b9fb6de1ffa5fa097d51574eb10865beab2 100644
--- a/chrome/browser/safe_browsing/chrome_password_protection_service.h
+++ b/chrome/browser/safe_browsing/chrome_password_protection_service.h
@@ -36,9 +36,11 @@ class ChromePasswordProtectionService : public PasswordProtectionService {
   bool IsIncognito() override;
 
   // Checks if Finch config allows sending pings to Safe Browsing Server.
+  // If not, indicated its reason by modifying |reason|.
   // |feature| should be either kLowReputationPinging or
   // kProtectedPasswordEntryPinging.
-  bool IsPingingEnabled(const base::Feature& feature) override;
+  bool IsPingingEnabled(const base::Feature& feature,
+                        RequestOutcome* reason) override;
 
   // If user enabled history syncing.
   bool IsHistorySyncEnabled() override;