Bug 1634386 - The Password Import Autocomplete suggestion is displayed on Linux r=MattN

Share ChromeMigrationUtils.supportsLoginsForPlatform for ChromeProfileMigrator.getResources and ChromeMigrationUtils.getImportableLogins.

Differential Revision: https://phabricator.services.mozilla.com/D87639

browser/components/migration/ChromeMigrationUtils.jsm

@@ -37,6 +37,10 @@ var ChromeMigrationUtils = {
   // }
   _extensionLocaleStrings: {},
 
+  get supportsLoginsForPlatform() {
+    return ["macosx", "win"].includes(AppConstants.platform);
+  },
+
   /**
    * Get all extensions installed in a specific profile.
    * @param {String} profileId - A Chrome user profile ID. For example, "Profile 1".
@@ -369,6 +373,11 @@ var ChromeMigrationUtils = {
    */
   _importableLoginsCache: null,
   async getImportableLogins(formOrigin) {
+    // Only provide importable if we actually support importing.
+    if (!this.supportsLoginsForPlatform) {
+      return undefined;
+    }
+
     // Lazily fill the cache with all importable login browsers.
     if (!this._importableLoginsCache) {
       this._importableLoginsCache = new Map();

browser/components/migration/ChromeProfileMigrator.jsm

@@ -120,7 +120,7 @@ ChromeProfileMigrator.prototype.getResources = async function Chrome_getResource
         GetHistoryResource(profileFolder),
         GetCookiesResource(profileFolder),
       ];
-      if (AppConstants.platform == "win" || AppConstants.platform == "macosx") {
+      if (ChromeMigrationUtils.supportsLoginsForPlatform) {
         possibleResourcePromises.push(
           this._GetPasswordsResource(profileFolder)
         );