Skeleton for showing "Show all saved passwords row" for Linux/CrOs/Windows platforms

components/autofill/core/browser/autofill_client.h

Index: components/autofill/core/browser/autofill_client.h
diff --git a/components/autofill/core/browser/autofill_client.h b/components/autofill/core/browser/autofill_client.h
index 9084f772daa2dd964d8b8fda8b83ddcbab8de653..151bcc0be1fec9720a65414a2f7b4cfda0e3e34b 100644
--- a/components/autofill/core/browser/autofill_client.h
+++ b/components/autofill/core/browser/autofill_client.h
@@ -199,6 +199,10 @@ class AutofillClient : public RiskDataLoader {
 
   // Shows the explanation of http not secure warning message.
   virtual void ShowHttpNotSecureExplanation() = 0;
+
+  // Opens password manager settings page, so user can check all saved
+  // passwords.
+  virtual void ShowPasswordsSettingsPage() = 0;
 };
 
 }  // namespace autofill