Remove deprecated CommandLine(std::wstring) ctor.

chrome_frame/test/chrome_frame_test_utils.cc

Index: chrome_frame/test/chrome_frame_test_utils.cc
diff --git a/chrome_frame/test/chrome_frame_test_utils.cc b/chrome_frame/test/chrome_frame_test_utils.cc
index a75d7914722bc7c451a35bcce67c1fcdfcbc7efc..7d2d67b0992d9264c1971b02f1ec8ff2730aed46 100644
--- a/chrome_frame/test/chrome_frame_test_utils.cc
+++ b/chrome_frame/test/chrome_frame_test_utils.cc
@@ -322,8 +322,7 @@ base::ProcessHandle LaunchExecutable(const std::wstring& executable,
     if (path.empty()) {
       DLOG(ERROR) << "Failed to find executable: " << executable;
     } else {
-      CommandLine cmdline(L"");
-      cmdline.ParseFromString(path);
+      CommandLine cmdline = CommandLine::FromString(path);
       base::LaunchApp(cmdline, false, false, &process);
     }
   } else {