Remove some debug switches.

base/file_util_posix.cc

Index: base/file_util_posix.cc
diff --git a/base/file_util_posix.cc b/base/file_util_posix.cc
index 4d9cf42080edd90ddc793b43fa1f924f0674f994..13798d3d275bf0110b47a5b927537e478a4beb28 100644
--- a/base/file_util_posix.cc
+++ b/base/file_util_posix.cc
@@ -430,15 +430,7 @@ static bool CreateTemporaryDirInDirImpl(const FilePath& base_dir,
 
 bool CreateTemporaryDirInDir(const FilePath& base_dir,
                              const FilePath::StringType& prefix,
-                             bool loosen_permissions,
                              FilePath* new_dir) {
-  // To understand crbug/35198, the ability to call this
-  // this function on windows while giving loose permissions
-  // to the resulting directory has been temporarily added.
-  // It should not be possible to call this function with
-  // loosen_permissions == true on non-windows platforms.
-  DCHECK(!loosen_permissions);
-
   FilePath::StringType mkdtemp_template = prefix;
   mkdtemp_template.append(FILE_PATH_LITERAL("XXXXXX"));
   return CreateTemporaryDirInDirImpl(base_dir, mkdtemp_template, new_dir);