Start using file_util symlink code, now that it's available.

In CL http://codereview.chromium.org/5349007
I added some base API for manipulating symlinks (since I needed it for some ChromeOS code and noticed that other places could use it too), and this just starts using that API.

BUG=none
TEST=Ran ui_tests, passed trybots.

Review URL: http://codereview.chromium.org/5286010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@68181 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 3 insertions, 4 deletions

diff --git a/base/process_util_linux.cc b/base/process_util_linux.cc
index 6138c07..4627aa5 100644
--- a/base/process_util_linux.cc
+++ b/base/process_util_linux.cc
@@ -111,13 +111,12 @@ FilePath GetProcessExecutablePath(ProcessHandle process) {
   FilePath stat_file("/proc");
   stat_file = stat_file.Append(base::IntToString(process));
   stat_file = stat_file.Append("exe");
-  char exename[2048];
-  ssize_t len = readlink(stat_file.value().c_str(), exename, sizeof(exename));
-  if (len < 1) {
+  FilePath exe_name;
+  if (!file_util::ReadSymbolicLink(stat_file, &exe_name)) {
     // No such process.  Happens frequently in e.g. TerminateAllChromeProcesses
     return FilePath();
   }
-  return FilePath(std::string(exename, len));
+  return exe_name;
 }
 
 ProcessIterator::ProcessIterator(const ProcessFilter* filter)