Bug 1253646 - Implement browser.extension.isAllowedFileSchemeAccess. r=kmag

MozReview-Commit-ID: 85UL3ATGrfB

--HG--
extra : transplant_source : %C9%C3%EE%B9/%7C%8F%7DMO%AE5%7C%02%25%22%9E%D8%08%09

toolkit/components/extensions/ext-extension.js

@@ -38,6 +38,10 @@ extensions.registerSchemaAPI("extension", null, (extension, context) => {
       isAllowedIncognitoAccess() {
         return Promise.resolve(true);
       },
+
+      isAllowedFileSchemeAccess() {
+        return Promise.resolve(true);
+      },
     },
   };
 });

toolkit/components/extensions/schemas/extension.json

@@ -117,7 +117,6 @@
       },
       {
         "name": "isAllowedFileSchemeAccess",
-        "unsupported": true,
         "type": "function",
         "description": "Retrieves the state of the extension's access to the 'file://' scheme (as determined by the user-controlled 'Allow access to File URLs' checkbox.",
         "async": "callback",

toolkit/components/extensions/test/mochitest/test_ext_extension.html

@@ -33,6 +33,26 @@ add_task(function* test_is_allowed_incognito_access() {
   info("extension unloaded");
 });
 
+add_task(function* test_is_allowed_file_scheme_access() {
+  function backgroundScript() {
+    browser.extension.isAllowedFileSchemeAccess().then(isAllowedFileSchemeAccess => {
+      browser.test.assertEq(true, isAllowedFileSchemeAccess, "isAllowedFileSchemeAccess is true");
+      browser.test.notifyPass("isAllowedFileSchemeAccess");
+    });
+  }
+
+  let extension = ExtensionTestUtils.loadExtension({
+    background: `(${backgroundScript})()`,
+    manifest: {},
+  });
+
+  yield extension.startup();
+  info("extension loaded");
+  yield extension.awaitFinish("isAllowedFileSchemeAccess")
+  yield extension.unload();
+  info("extension unloaded");
+});
+
 </script>
 
 </body>