Move PathIsWritable, DirectoryExists, ContentsEqual, and TextContentsEqual to the base namespace.

TBR=sky

Review URL: https://codereview.chromium.org/19052005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@211675 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: dcd16611096dcc5e7651763ff888135e0fb305fc
diff --git a/base/files/file_util_proxy.cc b/base/files/file_util_proxy.cc
index 721f671..fee97fb 100644
--- a/base/files/file_util_proxy.cc
+++ b/base/files/file_util_proxy.cc
@@ -197,7 +197,7 @@
     PlatformFile* file_handle, bool* created) {
   DCHECK(file_handle);
   DCHECK(created);
-  if (!file_util::DirectoryExists(file_path.DirName())) {
+  if (!DirectoryExists(file_path.DirName())) {
     // If its parent does not exist, should return NOT_FOUND error.
     return PLATFORM_FILE_ERROR_NOT_FOUND;
   }