Revert of Update SplitString calls to new form

google_apis/drive/test_util.cc

Index: google_apis/drive/test_util.cc
diff --git a/google_apis/drive/test_util.cc b/google_apis/drive/test_util.cc
index e77aedfdeb015d5b455cd1f13779c1df40ef6e1d..ae96409ce05a847621e821c68cffa5a48d3107bd 100644
--- a/google_apis/drive/test_util.cc
+++ b/google_apis/drive/test_util.cc
@@ -133,16 +133,17 @@
   if (!RemovePrefix(value, "bytes ", &remaining))
     return false;
 
-  std::vector<base::StringPiece> parts = base::SplitStringPiece(
-      remaining, "/", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
+  std::vector<std::string> parts;
+  base::SplitString(remaining, '/', &parts);
   if (parts.size() != 2U)
     return false;
 
+  const std::string range = parts[0];
   if (!base::StringToInt64(parts[1], length))
     return false;
 
-  parts = base::SplitStringPiece(parts[0], "-", base::TRIM_WHITESPACE,
-                                 base::SPLIT_WANT_ALL);
+  parts.clear();
+  base::SplitString(range, '-', &parts);
   if (parts.size() != 2U)
     return false;