Add finch control of user population in low reputation requests

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 4124c865e766d7fd33a55d3083c9523e5f5608d3..77bbc2fefeccffc4840389a055465301288b59a8 100644
--- a/chrome/browser/safe_browsing/chrome_password_protection_service.h
+++ b/chrome/browser/safe_browsing/chrome_password_protection_service.h
@@ -35,10 +35,30 @@ class ChromePasswordProtectionService : public PasswordProtectionService {
 
   bool IsIncognito() override;
 
-  // Checks if Finch config allows sending pings to Safe Browsing backend.
-  bool IsPingingEnabled() override;
+  // Checks if Finch config allows sending pings to Safe Browsing Server.
+  // |feature| should be either kLowReputationPinging or
+  // kProtectedPasswordEntryPinging.
+  bool IsPingingEnabled(const base::Feature& feature) override;
+
+  // If user enabled history syncing.
+  bool IsHistorySyncEnabled() override;
+
+  FRIEND_TEST_ALL_PREFIXES(
+      ChromePasswordProtectionServiceTest,
+      VerifyFinchControlForLowReputationPingSBEROnlyNoIncognito);
+  FRIEND_TEST_ALL_PREFIXES(
+      ChromePasswordProtectionServiceTest,
+      VerifyFinchControlForLowReputationPingSBERAndHistorySyncNoIncognito);
+  FRIEND_TEST_ALL_PREFIXES(ChromePasswordProtectionServiceTest,
+                           VerifyFinchControlForLowReputationPingAll);
+  FRIEND_TEST_ALL_PREFIXES(
+      ChromePasswordProtectionServiceTest,
+      VerifyFinchControlForLowReputationPingAllButNoIncognito);
 
  private:
+  friend class MockChromePasswordProtectionService;
+  // Default constructor used for tests only.
+  ChromePasswordProtectionService();
   // Profile associated with this instance.
   Profile* profile_;
   scoped_refptr<SafeBrowsingNavigationObserverManager>