Media Galleries: Add a dropPermissionForMediaFileSystem() API.

chrome/test/data/extensions/api_test/media_galleries/read_access/test.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 var mediaGalleries = chrome.mediaGalleries;
 var expectedGalleryEntryLength;
 
 function TestFirstFilesystem(verifyFilesystem) {
   function getMediaFileSystemsList() {
     mediaGalleries.getMediaFileSystems(getMediaFileSystemsCallback);
@@ skipping 46 matching lines @@
   }
 
   function verifyMetadata(metadata) {
     chrome.test.assertEq("image/jpeg", metadata.mimeType);
     chrome.test.succeed();
   }
 
   TestFirstFilesystem(verifyFilesystem);
 }
 
-function GetMediaFileSystemMetadata() {
+function GetMediaFileSystemMetadataTest() {
   function verifyFilesystem(filesystem) {
     var metadata = mediaGalleries.getMediaFileSystemMetadata(filesystem);
     checkMetadata(metadata);
     chrome.test.succeed();
   }
 
   TestFirstFilesystem(verifyFilesystem);
 }
 
-function GetAllMediaFileSystemMetadata() {
+function GetAllMediaFileSystemMetadataTest() {
   function verifyMetadataList(metadataList) {
     chrome.test.assertEq(1, metadataList.length)
     checkMetadata(metadataList[0]);
     chrome.test.succeed();
   }
 
   mediaGalleries.getAllMediaFileSystemMetadata(verifyMetadataList);
 }
 
+function ForgetMediaFileSystemTest() {
+  var forgottenFS;
+
+  function callForget(filesystem) {
+    forgottenFS = filesystem;
+    mediaGalleries.forgetMediaFileSystem(filesystem, verifyForgetSucceeded);
+  }
+
+  function verifyForgetSucceeded(forgotten) {
+    chrome.test.assertTrue(forgotten);
+    mediaGalleries.getMediaFileSystems(verifyNoFileSystemAccess);
+  }
+
+  function verifyNoFileSystemAccess(results) {
+    chrome.test.assertEq(0, results.length);
+    mediaGalleries.forgetMediaFileSystem(forgottenFS, verifyForgetFailed);
+  }
+
+  function verifyForgetFailed(forgotten) {
+    chrome.test.assertFalse(forgotten);
+    chrome.test.succeed();
+  }
+
+  TestFirstFilesystem(callForget);
+}
+
 CreateDummyWindowToPreventSleep();
 
 chrome.test.getConfig(function(config) {
   customArg = JSON.parse(config.customArg);
   expectedGalleryEntryLength = customArg[0];
 
   chrome.test.runTests([
     ReadDirectoryTest,
     ReadFileToBytesTest,
     GetMetadataTest,
-    GetMediaFileSystemMetadata,
-    GetAllMediaFileSystemMetadata,
+    GetMediaFileSystemMetadataTest,
+    GetAllMediaFileSystemMetadataTest,
+    ForgetMediaFileSystemTest,
   ]);
 })