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..6b6dc386b6e1f65a2b778b39864c8c7aa9f38cbe 100644
--- a/components/autofill/core/browser/autofill_client.h
+++ b/components/autofill/core/browser/autofill_client.h
@@ -199,6 +199,9 @@ class AutofillClient : public RiskDataLoader {
 
   // Shows the explanation of http not secure warning message.
   virtual void ShowHttpNotSecureExplanation() = 0;
+
+  // Handles simple actions for the password fields popups.
+  virtual bool ExecuteCommand(int id) = 0;
 };
 
 }  // namespace autofill