Updating pinning/unpinning code to be consistent with current API.

chrome/browser/resources/file_manager/js/file_manager.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.
 
 // Setting the src of an img to an empty string can crash the browser, so we
 // use an empty 1x1 gif instead.
 
 /**
  * FileManager constructor.
  *
@@ skipping 3070 matching lines @@
       // checkbox and avoid the trouble.
       event.preventDefault();
     }
   };
 
   FileManager.prototype.onPinClick_ = function(checkbox, entry, event) {
     function callback(props) {
       checkbox.checked = entry.gdata_.isPinned = props[0].isPinned;
     }
 
-    if (checkbox.checked) {
-      chrome.fileBrowserPrivate.pinGDataFile([entry.toURL()], callback);
-      console.log('Pinning file ', entry.toURL());
-    }
+    chrome.fileBrowserPrivate.pinGDataFile([entry.toURL()],
+                                           !checkbox.checked, callback);
     event.preventDefault();
   };
 
   FileManager.prototype.selectDefaultPathInFilenameInput_ = function() {
     var input = this.filenameInput_;
     input.focus();
     var selectionEnd = input.value.lastIndexOf('.');
     if (selectionEnd == -1) {
       input.select();
     } else {
@@ skipping 1040 matching lines @@
           });
       }, onError);
 
       function onError(err) {
         console.log('Error while checking free space: ' + err);
         setTimeout(doCheck, 1000 * 60);
       }
     }
   }
 })();