Rename chrome.fileSystem apis to be expandable to directories if we wish.

chrome/renderer/resources/extensions/file_system_custom_bindings.js

Index: chrome/renderer/resources/extensions/file_system_custom_bindings.js
diff --git a/chrome/renderer/resources/extensions/file_system_custom_bindings.js b/chrome/renderer/resources/extensions/file_system_custom_bindings.js
index 0f2b9f4e234e4f4d480352a5ef163548145586c7..47c1328fc52f904e208d02545a6b3833fb06c23d 100644
--- a/chrome/renderer/resources/extensions/file_system_custom_bindings.js
+++ b/chrome/renderer/resources/extensions/file_system_custom_bindings.js
@@ -19,7 +19,7 @@ chromeHidden.registerCustomHook('fileSystem', function(bindingsAPI) {
       return [fileSystemName, relativePath, callback];
     });
   }
-  ['getDisplayPath', 'getWritableFileEntry', 'isWritableFileEntry']
+  ['getDisplayPath', 'getWritableEntry', 'isWritableEntry']
       .forEach(bindFileEntryFunction);
 
   function bindFileEntryCallback(functionName) {
@@ -47,5 +47,10 @@ chromeHidden.registerCustomHook('fileSystem', function(bindingsAPI) {
       }
     });
   }
-  ['getWritableFileEntry', 'chooseFile'].forEach(bindFileEntryCallback);
+  ['getWritableEntry', 'chooseEntry'].forEach(bindFileEntryCallback);
+
+  // Remove these deprecated versions of the functions.
+  chrome.fileSystem.getWritableFileEntry = chrome.fileSystem.getWritableEntry;

[Mihai Parparita -not on Chrome, 2012/09/14 06:01:59]

It would be neat to have a wrapper that logs a warning to the console when these
deprecated versions are called.

+  chrome.fileSystem.isWritableFileEntry = chrome.fileSystem.isWritableEntry;
+  chrome.fileSystem.chooseFile = chrome.fileSystem.chooseEntry;
 });