Cleanup: Use base::CommandLine in net/

net/tools/disk_cache_memory_test/disk_cache_memory_test.cc

Index: net/tools/disk_cache_memory_test/disk_cache_memory_test.cc
===================================================================
--- net/tools/disk_cache_memory_test/disk_cache_memory_test.cc	(revision 272153)
+++ net/tools/disk_cache_memory_test/disk_cache_memory_test.cc	(working copy)
@@ -267,8 +267,9 @@
 bool Main(int argc, char** argv) {
   base::AtExitManager at_exit_manager;
   base::MessageLoopForIO message_loop;
-  CommandLine::Init(argc, argv);
-  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
+  base::CommandLine::Init(argc, argv);
+  const base::CommandLine& command_line =
+      *base::CommandLine::ForCurrentProcess();
   if (command_line.HasSwitch("help")) {
     PrintUsage(&std::cout);
     return true;