Added O_CLOEXEC to the flags parameter of open() calls

runtime/bin/file_android.cc

Index: runtime/bin/file_android.cc
diff --git a/runtime/bin/file_android.cc b/runtime/bin/file_android.cc
index 77665e6f8c0639e1f48c0ebe7ff34e499cc4ab41..66e625164d5ef823ee35deca28cedc0e4eb863fc 100644
--- a/runtime/bin/file_android.cc
+++ b/runtime/bin/file_android.cc
@@ -115,6 +115,7 @@ File* File::Open(const char* name, FileOpenMode mode) {
   if ((mode & kTruncate) != 0) {
     flags = flags | O_TRUNC;
   }
+  flags |= O_CLOEXEC;
   int fd = TEMP_FAILURE_RETRY(open(name, flags, 0666));
   if (fd < 0) {
     return NULL;
@@ -146,7 +147,7 @@ bool File::Exists(const char* name) {
 
 
 bool File::Create(const char* name) {
-  int fd = TEMP_FAILURE_RETRY(open(name, O_RDONLY | O_CREAT, 0666));
+  int fd = TEMP_FAILURE_RETRY(open(name, O_RDONLY | O_CREAT | O_CLOEXEC, 0666));
   if (fd < 0) {
     return false;
   }