Move temp file functions to base namespace.

BUG=

Review URL: https://codereview.chromium.org/99923002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@238427 0039d316-1c4b-4281-b951-d872f2087c98

diff --git a/base/file_util.cc b/base/file_util.cc
index 1f8ba81..f6d8657 100644
--- a/base/file_util.cc
+++ b/base/file_util.cc

@@ -153,6 +153,14 @@
   return false;
 }
 
+FILE* CreateAndOpenTemporaryFile(FilePath* path) {
+  FilePath directory;
+  if (!GetTempDir(&directory))
+    return NULL;
+
+  return CreateAndOpenTemporaryFileInDir(directory, path);
+}
+
 }  // namespace base
 
 // -----------------------------------------------------------------------------
@@ -163,14 +171,6 @@
 using base::FilePath;
 using base::kMaxUniqueFiles;
 
-FILE* CreateAndOpenTemporaryFile(FilePath* path) {
-  FilePath directory;
-  if (!GetTempDir(&directory))
-    return NULL;
-
-  return CreateAndOpenTemporaryFileInDir(directory, path);
-}
-
 bool CreateDirectory(const base::FilePath& full_path) {
   return CreateDirectoryAndGetError(full_path, NULL);
 }