Remove remaining legacy SplitString calls.

components/upload_list/upload_list.cc

Index: components/upload_list/upload_list.cc
diff --git a/components/upload_list/upload_list.cc b/components/upload_list/upload_list.cc
index c16f27f6f4807c5e7b508afe02b29cb2e5a842b7..e99ce0b575bd7b8470bc8093f1178c7e88d17b60 100644
--- a/components/upload_list/upload_list.cc
+++ b/components/upload_list/upload_list.cc
@@ -12,6 +12,7 @@
 #include "base/location.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
+#include "base/strings/string_util.h"
 #include "base/thread_task_runner_handle.h"
 #include "base/threading/sequenced_worker_pool.h"
 
@@ -60,8 +61,9 @@ void UploadList::LoadUploadList() {
   if (base::PathExists(upload_log_path_)) {
     std::string contents;
     base::ReadFileToString(upload_log_path_, &contents);
-    std::vector<std::string> log_entries;
-    base::SplitStringAlongWhitespace(contents, &log_entries);
+    std::vector<std::string> log_entries = base::SplitString(
+        contents, base::kWhitespaceASCII, base::KEEP_WHITESPACE,
+        base::SPLIT_WANT_NONEMPTY);
     ClearUploads();
     ParseLogEntries(log_entries);
   }