Move content deduplication into the scan process.

ui/file_manager/file_manager/background/js/media_import_handler_unittest.js

 // Copyright 2014 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.
 
 /** @type {!MockFileOperationManager} */
 var progressCenter;
 
 /** @type {!TestMediaScanner} */
 var mediaScanner;
 
@@ skipping 63 matching lines @@
 
   importHistory = new importer.TestImportHistory();
   mediaScanner = new TestMediaScanner();
   destinationFileSystem = new MockFileSystem('googleDriveFilesystem');
   destinationFactory = Promise.resolve(destinationFileSystem.root);
   duplicateFinderFactory = new importer.TestDuplicateFinder.Factory();
 
   mediaImporter = new importer.MediaImportHandler(
       progressCenter,
       importHistory,
-      duplicateFinderFactory,
       new TestTracker());
 }
 
 function testImportMedia(callback) {
   var media = setupFileSystem([
     '/DCIM/photos0/IMG00001.jpg',
     '/DCIM/photos0/IMG00002.jpg',
     '/DCIM/photos0/IMG00003.jpg',
     '/DCIM/photos1/IMG00004.jpg',
     '/DCIM/photos1/IMG00005.jpg',
@@ skipping 269 matching lines @@
       whenImportCancelled.then(
         function() {
           var copiedEntries = destinationFileSystem.root.getAllChildren();
           assertEquals(EXPECTED_COPY_COUNT, copiedEntries.length);
         }),
       callback);
 
   scanResult.finalize();
 }
 
-function testImportWithDuplicates(callback) {
-  var media = setupFileSystem([
-    '/DCIM/photos0/IMG00001.jpg',
-    '/DCIM/photos0/IMG00002.jpg',
-    '/DCIM/photos0/IMG00003.jpg',
-    '/DCIM/photos1/IMG00004.jpg',
-    '/DCIM/photos1/IMG00005.jpg',
-    '/DCIM/photos1/IMG00006.jpg'
-  ]);
-
-  /** @const {number} */
-  var EXPECTED_COPY_COUNT = 3;
-
-  var scanResult = new TestScanResult(media);
-  var importTask = mediaImporter.importFromScanResult(
-      scanResult,
-      importer.Destination.GOOGLE_DRIVE,
-      destinationFactory);
-  var whenImportDone = new Promise(
-      function(resolve, reject) {
-        importTask.addObserver(
-            /**
-             * @param {!importer.TaskQueue.UpdateType} updateType
-             * @param {!importer.TaskQueue.Task} task
-             */
-            function(updateType, task) {
-              switch (updateType) {
-                case importer.TaskQueue.UpdateType.COMPLETE:
-                  resolve();
-                  break;
-                case importer.TaskQueue.UpdateType.ERROR:
-                  reject(new Error(importer.TaskQueue.UpdateType.ERROR));
-                  break;
-              }
-            });
-      });
-
-  // Simulate a known number of new imports followed by a bunch of duplicate
-  // imports.
-  var copyCount = 0;
-  importTask.addObserver(function(updateType) {
-    if (updateType ===
-        importer.MediaImportHandler.ImportTask.UpdateType.ENTRY_CHANGED) {
-      copyCount++;
-      if (copyCount === EXPECTED_COPY_COUNT) {
-        duplicateFinderFactory.instances[0].returnValue = true;
-      }
-    }
-  });
-
-  reportPromise(
-      whenImportDone.then(
-        function() {
-          var copiedEntries = destinationFileSystem.root.getAllChildren();
-          assertEquals(EXPECTED_COPY_COUNT, copiedEntries.length);
-        }),
-      callback);
-
-  scanResult.finalize();
-}
-
 function testImportWithErrors(callback) {
 
   // Quiet the logger just in this test where we expect errors.
   // Elsewhere, it's better for errors to be seen by test authors.
   importer.setupTestLogger().quiet();
 
   var media = setupFileSystem([
     '/DCIM/photos0/IMG00001.jpg',
     '/DCIM/photos0/IMG00002.jpg',
     '/DCIM/photos0/IMG00003.jpg',
@@ skipping 130 matching lines @@
   });
   source.copyTo(
       parent,
       newName,
       function(newEntry) {
         this.entryChangedCallback_(source.toURL(), parent);
         this.successCallback_(newEntry);
       }.bind(this),
       this.errorCallback_.bind(this));
 };