Switch components/password_manager code from IPC messages to Mojo.

components/password_manager/core/common/credential_manager_types.h

Index: components/password_manager/core/common/credential_manager_types.h
diff --git a/components/password_manager/core/common/credential_manager_types.h b/components/password_manager/core/common/credential_manager_types.h
index f798acff8af7dfb837f7f2ff40760cf55135ed7e..b2658df79a6667e6d1cb1c73a46ee566366e7514 100644
--- a/components/password_manager/core/common/credential_manager_types.h
+++ b/components/password_manager/core/common/credential_manager_types.h
@@ -7,6 +7,7 @@
 
 #include <stddef.h>
 
+#include <ostream>
 #include <string>
 
 #include "base/compiler_specific.h"
@@ -31,6 +32,8 @@ enum class CredentialType {
   CREDENTIAL_TYPE_LAST = CREDENTIAL_TYPE_FEDERATED
 };
 
+std::ostream& operator<<(std::ostream& os, CredentialType value);
+
 struct CredentialInfo {
   CredentialInfo();
   CredentialInfo(const autofill::PasswordForm& form, CredentialType form_type);