Make callers of CommandLine use it via the base:: namespace.

win8/delegate_execute/delegate_execute_operation.cc

Index: win8/delegate_execute/delegate_execute_operation.cc
diff --git a/win8/delegate_execute/delegate_execute_operation.cc b/win8/delegate_execute/delegate_execute_operation.cc
index ac364273b8ea557c86388409f28874c00c19e0ba..a4a61a12d6565cede265cdc06022601facc8c2c0 100644
--- a/win8/delegate_execute/delegate_execute_operation.cc
+++ b/win8/delegate_execute/delegate_execute_operation.cc
@@ -20,7 +20,7 @@ DelegateExecuteOperation::DelegateExecuteOperation()
 DelegateExecuteOperation::~DelegateExecuteOperation() {
 }
 
-bool DelegateExecuteOperation::Init(const CommandLine* cmd_line) {
+bool DelegateExecuteOperation::Init(const base::CommandLine* cmd_line) {
   if (base::win::GetVersion() >= base::win::VERSION_WIN7) {
     base::FilePath shortcut(
         cmd_line->GetSwitchValuePath(switches::kRelaunchShortcut));