Store local auth credentials after successful login or re-auth.

BUG=405550

Review URL: https://codereview.chromium.org/508433004

Cr-Commit-Position: refs/heads/master@{#292122}

chrome/browser/signin/chrome_signin_client.cc

@@ -207,7 +207,7 @@ ChromeSigninClient::AddCookieChangedCallback(
 void ChromeSigninClient::GoogleSigninSucceeded(const std::string& username,
                                                const std::string& password) {
 #if !defined(OS_ANDROID) && !defined(OS_IOS) && !defined(OS_CHROMEOS)
-  // Don't store password hash except for users of account consistency features.
+  // Don't store password hash except for users of new profile management.
   if (switches::IsNewProfileManagement())
     chrome::SetLocalAuthCredentials(profile_, password);
 #endif

chrome/browser/ui/webui/signin/inline_login_handler_impl.cc

@@ -14,6 +14,7 @@
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/signin/about_signin_internals_factory.h"
 #include "chrome/browser/signin/chrome_signin_client_factory.h"
+#include "chrome/browser/signin/local_auth.h"
 #include "chrome/browser/signin/profile_oauth2_token_service_factory.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
 #include "chrome/browser/sync/profile_sync_service.h"
@@ -115,10 +116,19 @@ void InlineSigninHelper::OnSigninOAuthInformationAvailable(
   }
 
   AboutSigninInternals* about_signin_internals =
-    AboutSigninInternalsFactory::GetForProfile(profile_);
+      AboutSigninInternalsFactory::GetForProfile(profile_);
   about_signin_internals->OnRefreshTokenReceived("Successful");
 
   signin::Source source = signin::GetSourceForPromoURL(current_url_);
+
+  std::string primary_email =
+      SigninManagerFactory::GetForProfile(profile_)->GetAuthenticatedUsername();
+  if (gaia::AreEmailsSame(email, primary_email) &&
+      source == signin::SOURCE_REAUTH &&
+      switches::IsNewProfileManagement()) {
+    chrome::SetLocalAuthCredentials(profile_, password_);
+  }
+
   if (source == signin::SOURCE_AVATAR_BUBBLE_ADD_ACCOUNT ||
       source == signin::SOURCE_REAUTH) {
     ProfileOAuth2TokenServiceFactory::GetForProfile(profile_)->