MD Settings: mergeable "View password" button fix

R=hcarmona@chromium.org
BUG=715866

Review-Url: https://codereview.chromium.org/2848983002
Cr-Commit-Position: refs/heads/master@{#468171}

chrome/browser/extensions/api/passwords_private/passwords_private_event_router.cc

@@ -17,6 +17,7 @@
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/extensions/api/passwords_private.h"
 #include "content/public/browser/browser_context.h"
+#include "url/gurl.h"
 
 namespace extensions {
 
@@ -73,7 +74,8 @@ void PasswordsPrivateEventRouter::OnPlaintextPasswordFetched(
         const std::string& username,
         const std::string& plaintext_password) {
   api::passwords_private::PlaintextPasswordEventParameters params;
-  params.login_pair.urls.origin = origin_url;
+  // TODO(crbug.com/715866): use origins and URLs more consistently.
+  params.login_pair.urls.origin = GURL(origin_url).GetOrigin().spec();
   params.login_pair.username = username;
   params.plaintext_password = plaintext_password;