Revert of Update SplitString calls to new form

ui/views/controls/label.cc

Index: ui/views/controls/label.cc
diff --git a/ui/views/controls/label.cc b/ui/views/controls/label.cc
index 43dafe649e284f35b120ab103e40be2ff39cb952..766452012697dfbbc3b33dd05e44a9f772c15488 100644
--- a/ui/views/controls/label.cc
+++ b/ui/views/controls/label.cc
@@ -496,9 +496,7 @@
   // |width| can be 0 when getting the default text size, in that case
   // the ideal lines (i.e. broken at newline characters) are wanted.
   if (width <= 0) {
-    lines = base::SplitString(
-        render_text_->GetDisplayText(), base::string16(1, '\n'),
-        base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
+    base::SplitString(render_text_->GetDisplayText(), '\n', &lines);
   } else {
     gfx::ElideRectangleText(render_text_->GetDisplayText(), font_list(), width,
                             std::numeric_limits<int>::max(),