Base: Don't delete the previous command line when calling

base/command_line_unittest.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/command_line.h"
 #include "base/file_path.h"
@@ skipping 266 matching lines @@
   EXPECT_EQ(kProgramPath.value(), cl_program_path.GetProgram().value());
 
   // Check that quotes are added to command line string paths containing spaces.
   CommandLine::StringType cmd_string(cl_program_path.command_line_string());
   CommandLine::StringType program_string(cl_program_path.GetProgram().value());
   EXPECT_EQ('"', cmd_string[0]);
   EXPECT_EQ(program_string, cmd_string.substr(1, program_string.length()));
   EXPECT_EQ('"', cmd_string[program_string.length() + 1]);
 }
 #endif
+
+// Calling Init multiple times should not modify the previous CommandLine.
+TEST(CommandLineTest, Init) {
+  CommandLine* initial = CommandLine::ForCurrentProcess();
+  CommandLine::Init(0, NULL);
+  CommandLine* current = CommandLine::ForCurrentProcess();
+  EXPECT_EQ(initial, current);
+}