blink: permissions: add plumbing to revoke permissions

LayoutTests/http/tests/permissions/chromium/resources/test-revoke.js

+if (self.importScripts) {
+    importScripts('../../resources/helpers.js');
+    importScripts('testrunner-helpers.js');
+
+    if (get_current_scope() == 'ServiceWorker')
+        importScripts('../../../serviceworker/resources/worker-testharness.js');
+    else
+        importScripts('../../../resources/testharness.js');
+}
+
+async_test(function(test) {
+    // Revoking a random permission name should fail.
+    navigator.permissions.revoke({name:'foobar'}).then(function(result) {
+        assert_unreached('revocing a random permission should fail');
+    }, function(error) {
+        assert_equals(error.name, 'TypeError');
+
+        // Querying a permission without a name should fail.
+        return navigator.permissions.query({});
+    }).then(function(result) {
+        assert_unreached('revoking a permission without a name should fail');
+    }, function(error) {
+        assert_equals(error.name, 'TypeError');
+        test.done();
+    });
+}, 'Test PermissionDescription WebIDL rules in ' + get_current_scope() + ' scope.');
+
+async_test(function(test) {
+    setPermission('geolocation', 'granted', location.origin, location.origin).then(test.step_func(function() {
+        navigator.permissions.revoke({name:'geolocation'}).then(function(result) {
+            assert_true(result instanceof PermissionStatus);
+            assert_equals(result.status, 'denied');
+            test.done();
+        }).catch(function() {
+            assert_unreached('revoking geolocation permission should not fail.')
+        });
+    }));
+}, 'Test geolocation permission in ' + get_current_scope() + ' scope.');
+
+/*
+async_test(function(test) {
+    setPermission('midi-sysex', 'granted', location.origin, location.origin).then(test.step_func(function() {
+        navigator.permissions.revoke({name:'midi'}).then(function(result) {
+            // By default, the permission is granted if "sysex" option isn't set or
+            // set to false even if we try to explictly revoke.
+            assert_equals(result.status, "granted");
+
+            // Test for sysex=false.
+            return navigator.permissions.revoke({name:'midi', sysex: false});
+        }).then(function(result) {
+            // By default, the permission is granted if "sysex" option isn't set or
+            // set to false even if we try to explictly revoke.
+            assert_equals(result.status, "granted");
+
+            // Test for sysex=true.
+            return navigator.permissions.revoke({name:'midi', sysex: true});
+        }).then(function(result) {
+            assert_true(result instanceof PermissionStatus);
+            assert_equals(result.status, 'denied');
+            test.done();
+        }).catch(function() {
+            assert_unreached('revoking midi permission should not fail.')
+        });
+    }));
+}, 'Test midi permission in ' + get_current_scope() + ' scope.');
+*/
+
+async_test(function(test) {
+    navigator.permissions.revoke({name:'notifications'}).then(function(result) {
+        assert_true(result instanceof PermissionStatus);
+        assert_equals(result.status, 'denied');
+        test.done();
+    }).catch(function() {
+        assert_unreached('querying notifications permission should not fail.')
+    });
+}, 'Test notifications permission in ' + get_current_scope() + ' scope.');
+
+async_test(function(test) {
+    navigator.permissions.revoke({name:'push'}).catch(function(e) {
+        // By default, the permission query is rejected if "userVisibleOnly" option
+        // isn't set or set to true.
+        assert_equals(e.name, "NotSupportedError");
+
+        // Test for userVisibleOnly=false.
+        return navigator.permissions.revoke({name:'push', userVisibleOnly: false});
+    }).catch(function(e) {
+        // By default, the permission query is rejected if "userVisibleOnly" option
+        // isn't set or set to true.
+        assert_equals(e.name, "NotSupportedError");
+
+        // Test for userVisibleOnly=true.
+        return navigator.permissions.revoke({name:'push', userVisibleOnly: true});
+    }).then(function(result) {
+        assert_true(result instanceof PermissionStatus);
+        assert_equals(result.status, 'denied');
+        test.done();
+    }).catch(function() {
+        assert_unreached('querying push permission should not fail.')
+    });
+}, 'Test push permission in ' + get_current_scope() + ' scope.');
+
+done();