Move scoped_temp_dir and scoped_native_library back from base/memory to base.

It looks like they got moved accidentally in http://codereview.chromium.org/6714032

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/7048007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@86010 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 84 insertions, 0 deletions

diff --git a/base/scoped_temp_dir.cc b/base/scoped_temp_dir.cc
new file mode 100644
index 0000000..fc886e5a
--- /dev/null
+++ b/base/scoped_temp_dir.cc
@@ -0,0 +1,84 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/scoped_temp_dir.h"
+
+#include "base/file_util.h"
+#include "base/logging.h"
+
+ScopedTempDir::ScopedTempDir() {
+}
+
+ScopedTempDir::~ScopedTempDir() {
+  if (!path_.empty() && !Delete())
+    LOG(WARNING) << "Could not delete temp dir in dtor.";
+}
+
+bool ScopedTempDir::CreateUniqueTempDir() {
+  if (!path_.empty())
+    return false;
+
+  // This "scoped_dir" prefix is only used on Windows and serves as a template
+  // for the unique name.
+  if (!file_util::CreateNewTempDirectory(FILE_PATH_LITERAL("scoped_dir"),
+                                         &path_))
+    return false;
+
+  return true;
+}
+
+bool ScopedTempDir::CreateUniqueTempDirUnderPath(const FilePath& base_path) {
+  if (!path_.empty())
+    return false;
+
+  // If |base_path| does not exist, create it.
+  if (!file_util::CreateDirectory(base_path))
+    return false;
+
+  // Create a new, uniquely named directory under |base_path|.
+  if (!file_util::CreateTemporaryDirInDir(
+          base_path,
+          FILE_PATH_LITERAL("scoped_dir_"),
+          &path_))
+    return false;
+
+  return true;
+}
+
+bool ScopedTempDir::Set(const FilePath& path) {
+  if (!path_.empty())
+    return false;
+
+  if (!file_util::DirectoryExists(path) &&
+      !file_util::CreateDirectory(path))
+    return false;
+
+  path_ = path;
+  return true;
+}
+
+bool ScopedTempDir::Delete() {
+  if (path_.empty())
+    return false;
+
+  bool ret = file_util::Delete(path_, true);
+  if (ret) {
+    // We only clear the path if deleted the directory.
+    path_.clear();
+  } else {
+    LOG(ERROR) << "ScopedTempDir unable to delete " << path_.value();
+  }
+
+  return ret;
+}
+
+FilePath ScopedTempDir::Take() {
+  FilePath ret = path_;
+  path_ = FilePath();
+  return ret;
+}
+
+bool ScopedTempDir::IsValid() const {
+  return !path_.empty() && file_util::DirectoryExists(path_);
+}