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;

[Evan Stade, 2017/07/12 17:53:52]

it seems like it would be a bit simpler (you wouldn't have to keep changing this
interface and all the multitudinous implementations) if you just had one generic
"ExecuteCommand(PopupItemId id)" function. This wouldn't cover every case
(credit card scanning requires a callback; some rows aren't actionable; etc),
but it would simplify the case of these fire-and-forget actions that map 1:1
with item IDs.

[melandory, 2017/07/13 10:38:11]

Done.

 };
 
 }  // namespace autofill