Restrict CM API interface request and message dispatch.

components/password_manager/content/browser/credential_manager_impl.h

Index: components/password_manager/content/browser/credential_manager_impl.h
diff --git a/components/password_manager/content/browser/credential_manager_impl.h b/components/password_manager/content/browser/credential_manager_impl.h
index 6db0b992f106151e058e8106c7c3c1cd073f78a0..4e6369dfe306d7f1b643316722b0d819e3c0c39f 100644
--- a/components/password_manager/content/browser/credential_manager_impl.h
+++ b/components/password_manager/content/browser/credential_manager_impl.h
@@ -18,7 +18,7 @@
 #include "components/password_manager/core/common/credential_manager_types.h"
 #include "components/prefs/pref_member.h"
 #include "content/public/browser/web_contents_observer.h"
-#include "mojo/public/cpp/bindings/binding_set.h"
+#include "mojo/public/cpp/bindings/associated_binding.h"
 
 class GURL;
 
@@ -48,7 +48,9 @@ class CredentialManagerImpl
                         PasswordManagerClient* client);
   ~CredentialManagerImpl() override;
 
-  void BindRequest(mojom::CredentialManagerRequest request);
+  void BindRequest(mojom::CredentialManagerAssociatedRequest request);
+  bool HasBinding() const;
+  void DisconnectBinding();
 
   // mojom::CredentialManager methods:
   void Store(const CredentialInfo& credential, StoreCallback callback) override;
@@ -97,7 +99,7 @@ class CredentialManagerImpl
   std::unique_ptr<CredentialManagerPendingPreventSilentAccessTask>
       pending_require_user_mediation_;
 
-  mojo::BindingSet<mojom::CredentialManager> bindings_;
+  mojo::AssociatedBinding<mojom::CredentialManager> binding_;
 
   base::WeakPtrFactory<CredentialManagerImpl> weak_factory_;