Move the SingletonSocket to a temporary directory

base/scoped_temp_dir.cc

Index: base/scoped_temp_dir.cc
diff --git a/base/scoped_temp_dir.cc b/base/scoped_temp_dir.cc
index 958dcbcb606204a48460605217b78fb7966dc796..a510ddfca2130da8ccc86de44b003fd5c4abde4d 100644
--- a/base/scoped_temp_dir.cc
+++ b/base/scoped_temp_dir.cc
@@ -11,8 +11,7 @@ ScopedTempDir::ScopedTempDir() {
 }
 
 ScopedTempDir::~ScopedTempDir() {
-  if (!path_.empty() && !file_util::Delete(path_, true))
-    LOG(ERROR) << "ScopedTempDir unable to delete " << path_.value();
+  Delete();
 }
 
 bool ScopedTempDir::CreateUniqueTempDir() {
@@ -50,6 +49,12 @@ bool ScopedTempDir::Set(const FilePath& path) {
   return true;
 }
 
+void ScopedTempDir::Delete() {
+  if (!path_.empty() && !file_util::Delete(path_, true))
+    LOG(ERROR) << "ScopedTempDir unable to delete " << path_.value();
+  path_.clear();
+}
+
 FilePath ScopedTempDir::Take() {
   FilePath ret = path_;
   path_ = FilePath();