Improve process launch handle sharing API.

base/test/multiprocess_test_android.cc

Index: base/test/multiprocess_test_android.cc
diff --git a/base/test/multiprocess_test_android.cc b/base/test/multiprocess_test_android.cc
index f5025527298d70b4861f9690b897fcfb95343928..839d9de6591669374a82c3ff9ccc6f6ff752bf16 100644
--- a/base/test/multiprocess_test_android.cc
+++ b/base/test/multiprocess_test_android.cc
@@ -33,11 +33,9 @@ SpawnChildResult SpawnMultiProcessTestChild(
 
   std::vector<int> fd_keys;
   std::vector<int> fd_fds;
-  if (options.fds_to_remap) {
-    for (auto& iter : *options.fds_to_remap) {
-      fd_keys.push_back(iter.second);
-      fd_fds.push_back(iter.first);
-    }
+  for (auto& iter : options.fds_to_remap) {
+    fd_keys.push_back(iter.second);
+    fd_fds.push_back(iter.first);
   }
 
   android::ScopedJavaLocalRef<jobjectArray> fds =