Simplify threading in browser thread by making only ChromeThread deal with di...

chrome/browser/renderer_host/file_system_accessor.cc

Index: chrome/browser/renderer_host/file_system_accessor.cc
===================================================================
--- chrome/browser/renderer_host/file_system_accessor.cc	(revision 30037)
+++ chrome/browser/renderer_host/file_system_accessor.cc	(working copy)
@@ -21,8 +21,8 @@
                                          FileSizeCallback* callback) {
   // Getting file size could take long time if it lives on a network share,
   // so run it on FILE thread.
-  ChromeThread::GetMessageLoop(ChromeThread::FILE)->PostTask(
-      FROM_HERE,
+  ChromeThread::PostTask(
+      ChromeThread::FILE, FROM_HERE,
       NewRunnableMethod(new FileSystemAccessor(param, callback),
                         &FileSystemAccessor::GetFileSize, path));
 }