[fsp] Add support for moving files within a provided file system.

chrome/test/data/extensions/api_test/file_system_provider/move_entry/test.js

Index: chrome/test/data/extensions/api_test/file_system_provider/move_entry/test.js
diff --git a/chrome/test/data/extensions/api_test/file_system_provider/copy_entry/test.js b/chrome/test/data/extensions/api_test/file_system_provider/move_entry/test.js
similarity index 67%
copy from chrome/test/data/extensions/api_test/file_system_provider/copy_entry/test.js
copy to chrome/test/data/extensions/api_test/file_system_provider/move_entry/test.js
index 6ff163696858e75335abaf6e7bd9716040497316..99a27b13256e05341d38aa83b93ba8840e86d433 100644
--- a/chrome/test/data/extensions/api_test/file_system_provider/copy_entry/test.js
+++ b/chrome/test/data/extensions/api_test/file_system_provider/move_entry/test.js
@@ -16,19 +16,30 @@ var TESTING_FILE = Object.freeze({
 });
 
 /**
+ * @type {Object}
+ * @const
+ */
+var TESTING_ANOTHER_FILE = Object.freeze({
+  isDirectory: false,
+  name: 'bunny',
+  size: 2048,
+  modificationTime: new Date(2014, 4, 28, 9, 38, 14)
+});
+
+/**
  * @type {string}
  * @const
  */
 var TESTING_NEW_FILE_NAME = 'puppy.txt';
 
 /**
- * Copies an entry within the same file system.
+ * Moves an entry within the same file system.
  *
- * @param {CopyEntryRequestedOptions} options Options.
+ * @param {MoveEntryRequestedOptions} options Options.
  * @param {function(Object)} onSuccess Success callback
  * @param {function(string)} onError Error callback with an error code.
  */
-function onCopyEntryRequested(options, onSuccess, onError) {
+function onMoveEntryRequested(options, onSuccess, onError) {
   if (options.fileSystemId != test_util.FILE_SYSTEM_ID) {
     onError('SECURITY');  // enum ProviderError.
     return;
@@ -49,12 +60,15 @@ function onCopyEntryRequested(options, onSuccess, onError) {
     return;
   }
 
-  // Copy the metadata, but change the 'name' field.
+  // Move the metadata with changing the 'name' field.
   var newMetadata =
       JSON.parse(JSON.stringify(test_util.defaultMetadata[options.sourcePath]));
   newMetadata.name = options.targetPath.split('/').pop();
   test_util.defaultMetadata[options.targetPath] = newMetadata;
 
+  // Remove the source file.
+  delete test_util.defaultMetadata[options.sourcePath];
+
   onSuccess();  // enum ProviderError.
 }
 
@@ -69,9 +83,11 @@ function setUp(callback) {
       test_util.onGetMetadataRequestedDefault);
 
   test_util.defaultMetadata['/' + TESTING_FILE.name] = TESTING_FILE;
+  test_util.defaultMetadata['/' + TESTING_ANOTHER_FILE.name] =
+      TESTING_ANOTHER_FILE;
 
-  chrome.fileSystemProvider.onCopyEntryRequested.addListener(
-      onCopyEntryRequested);
+  chrome.fileSystemProvider.onMoveEntryRequested.addListener(
+      onMoveEntryRequested);
 
   test_util.mountFileSystem(callback);
 }
@@ -81,21 +97,30 @@ function setUp(callback) {
  */
 function runTests() {
   chrome.test.runTests([
-    // Copy an existing file to a non-existing destination. Should succeed.
-    function copyEntrySuccess() {
+    // Move an existing file to a non-existing destination. Should succeed.
+    function moveEntrySuccess() {
       var onSuccess = chrome.test.callbackPass();
       test_util.fileSystem.root.getFile(
           TESTING_FILE.name, {create: false},
           function(sourceEntry) {
             chrome.test.assertEq(TESTING_FILE.name, sourceEntry.name);
             chrome.test.assertFalse(sourceEntry.isDirectory);
-            sourceEntry.copyTo(
+            sourceEntry.moveTo(
                 test_util.fileSystem.root,
                 TESTING_NEW_FILE_NAME,
                 function(targetEntry) {
                   chrome.test.assertEq(TESTING_NEW_FILE_NAME, targetEntry.name);
                   chrome.test.assertFalse(targetEntry.isDirectory);
-                  onSuccess();
+                  // The source file should be deleted.
+                  test_util.fileSystem.root.getFile(
+                      TESTING_FILE.name, {create: false},
+                      function(newSourceEntry) {
+                        chrome.test.fail('Source file not deleted.');
+                      },
+                      function(error) {
+                        chrome.test.assertEq('NotFoundError', error.name);
+                        onSuccess();
+                      });
                 }, function(error) {
                   chrome.test.fail(error.name);
                 });
@@ -103,16 +128,17 @@ function runTests() {
             chrome.test.fail(error.name);
           });
     },
-    // Copy an existing file to a location which already holds a file.
+
+    // Move an existing file to a location which already holds a file.
     // Should fail.
-    function copyEntryExistsError() {
+    function moveEntryExistsError() {
       var onSuccess = chrome.test.callbackPass();
       test_util.fileSystem.root.getFile(
-          TESTING_FILE.name, {create: false},
+          TESTING_ANOTHER_FILE.name, {create: false},
           function(sourceEntry) {
-            chrome.test.assertEq(TESTING_FILE.name, sourceEntry.name);
+            chrome.test.assertEq(TESTING_ANOTHER_FILE.name, sourceEntry.name);
             chrome.test.assertFalse(sourceEntry.isDirectory);
-            sourceEntry.copyTo(
+            sourceEntry.moveTo(
                 test_util.fileSystem.root,
                 TESTING_NEW_FILE_NAME,
                 function(targetEntry) {