Fix split in base::ProcessIsProcessBackgrounded()

base/process/process_linux.cc

Index: base/process/process_linux.cc
diff --git a/base/process/process_linux.cc b/base/process/process_linux.cc
index ce3dca1351872c44df97ceb274077bf3adb9083e..78000db9f21336ceebb1d3e3984c58bcd88e68dc 100644
--- a/base/process/process_linux.cc
+++ b/base/process/process_linux.cc
@@ -140,8 +140,8 @@ bool IsProcessBackgroundedCGroup(const StringPiece& cgroup_contents) {
   // hierarchy there's an entry in the file. We look for a control group
   // named "/chrome_renderers/background" to determine if the process is
   // backgrounded. crbug.com/548818.
-  std::vector<StringPiece> lines =
-      SplitStringPiece(cgroup_contents, "\n", TRIM_WHITESPACE, SPLIT_WANT_ALL);
+  std::vector<StringPiece> lines = SplitStringPiece(
+      cgroup_contents, "\n", TRIM_WHITESPACE, SPLIT_WANT_NONEMPTY);
   for (const auto& line : lines) {
     std::vector<StringPiece> fields =
         SplitStringPiece(line, ":", TRIM_WHITESPACE, SPLIT_WANT_ALL);