Add a TouchFile() function that takes a FilePath argument.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/3496005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@60381 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 22 insertions, 0 deletions

diff --git a/base/file_util.cc b/base/file_util.cc
index e618903..747232b 100644
--- a/base/file_util.cc
+++ b/base/file_util.cc
@@ -200,6 +200,28 @@ bool IsDotDot(const FilePath& path) {
   return FILE_PATH_LITERAL("..") == path.BaseName().value();
 }
 
+bool TouchFile(const FilePath& path,
+               const base::Time& last_accessed,
+               const base::Time& last_modified) {
+  base::PlatformFile file =
+      base::CreatePlatformFile(path,
+                               base::PLATFORM_FILE_OPEN |
+                               base::PLATFORM_FILE_WRITE_ATTRIBUTES,
+                               NULL, NULL);
+  if (file != base::kInvalidPlatformFileValue) {
+    bool result = base::TouchPlatformFile(file, last_accessed, last_modified);
+    base::ClosePlatformFile(file);
+    return result;
+  }
+
+  return false;
+}
+
+bool SetLastModifiedTime(const FilePath& path,
+                         const base::Time& last_modified) {
+  return TouchFile(path, last_modified, last_modified);
+}
+
 bool CloseFile(FILE* file) {
   if (file == NULL)
     return true;