[filebrowser] Fix detection of unmount-archive action.

chrome/browser/resources/file_manager/js/file_manager.js

Index: chrome/browser/resources/file_manager/js/file_manager.js
===================================================================
--- chrome/browser/resources/file_manager/js/file_manager.js	(revision 97846)
+++ chrome/browser/resources/file_manager/js/file_manager.js	(working copy)
@@ -1679,9 +1679,19 @@
   FileManager.prototype.maybeRenderUnmountTask_ = function(selection) {
     for (var index = 0; index < selection.urls.length; ++index) {
       // Each url should be a mount point.
-      var path = selection.urls[index];
-      if (!this.mountPoints_.hasOwnProperty(path) ||
-          this.mountPoints_[path].type != 'file')
+      var path = selection.entries[index].fullPath;
+      var found = false;
+      for (var i = 0; i < this.mountPoints_.length; i++) {
+        var mountPath = this.mountPoints_[i].mountPath;
+        if (mountPath[0] != '/') {

[rginda, 2011/08/23 21:09:03]

FYI, in http://codereview.chromium.org/7706028/ Szymon is factoring out the
normalize() function from maybeRenderFormattingTask_ into a utility method.

+          mountPath = '/' + mountPath;
+        }
+        if (mountPath == path && this.mountPoints_[i].mountType == 'file') {
+          found = true;
+          break;
+        }
+      }
+      if (!found)
         return;
     }
     this.renderTaskButton_({