Revert 192940 "Delete CopyRecursiveDirNoCache from test_file_util."

trunk/src/base/test/test_file_util.h

Index: trunk/src/base/test/test_file_util.h
===================================================================
--- trunk/src/base/test/test_file_util.h	(revision 193252)
+++ trunk/src/base/test/test_file_util.h	(working copy)
@@ -27,6 +27,15 @@
 // to access this file will result in a cold load from the hard drive.
 bool EvictFileFromSystemCache(const base::FilePath& file);
 
+// Like CopyFileNoCache but recursively copies all files and subdirectories
+// in the given input directory to the output directory. Any files in the
+// destination that already exist will be overwritten.
+//
+// Returns true on success. False means there was some error copying, so the
+// state of the destination is unknown.
+bool CopyRecursiveDirNoCache(const base::FilePath& source_dir,
+                             const base::FilePath& dest_dir);
+
 #if defined(OS_WIN)
 // Returns true if the volume supports Alternate Data Streams.
 bool VolumeSupportsADS(const base::FilePath& path);