Removed most of path utility functions in Files app.

chrome/browser/resources/file_manager/foreground/js/file_tasks.js

Index: chrome/browser/resources/file_manager/foreground/js/file_tasks.js
diff --git a/chrome/browser/resources/file_manager/foreground/js/file_tasks.js b/chrome/browser/resources/file_manager/foreground/js/file_tasks.js
index 474e9d9813f80a4900dbf493245940dffc4f7008..f9e37b48a86c1f4d8de1a82255c0b6be1f70ee50 100644
--- a/chrome/browser/resources/file_manager/foreground/js/file_tasks.js
+++ b/chrome/browser/resources/file_manager/foreground/js/file_tasks.js
@@ -211,9 +211,10 @@ FileTasks.prototype.processTasks_ = function(tasks) {
   this.tasks_ = [];
   var id = chrome.runtime.id;
   var isOnDrive = false;
+  var fm = this.fileManager_;
   for (var index = 0; index < this.entries_.length; ++index) {
-    // TODO(mtomasz): Use Entry instead of paths.
-    if (PathUtil.isDriveBasedPath(this.entries_[index].fullPath)) {
+    var locationInfo = fm.volumeManager.getLocationInfo(this.entries_[index]);
+    if (locationInfo && locationInfo.isDriveBased) {
       isOnDrive = true;
       break;
     }