Revert of Update SplitString calls to new form

ui/base/ime/input_method_auralinux_unittest.cc

Index: ui/base/ime/input_method_auralinux_unittest.cc
diff --git a/ui/base/ime/input_method_auralinux_unittest.cc b/ui/base/ime/input_method_auralinux_unittest.cc
index 2cd15008b9df173d75046f30a3e902a3e5e4c9b7..5c4afc53535bfc6051e54c85d64a860bc40b7179 100644
--- a/ui/base/ime/input_method_auralinux_unittest.cc
+++ b/ui/base/ime/input_method_auralinux_unittest.cc
@@ -87,9 +87,8 @@
     }
 
     for (const auto& action : actions_) {
-      std::vector<base::string16> parts = base::SplitString(
-          action, base::string16(1, ':'), base::TRIM_WHITESPACE,
-          base::SPLIT_WANT_ALL);
+      std::vector<base::string16> parts;
+      base::SplitString(action, L':', &parts);
       base::char16 id = parts[0][0];
       base::string16 param;
       if (parts.size() > 1)