Add base:: qualification to some CommandLine references in content.

content/browser/browser_child_process_host_impl.cc

Index: content/browser/browser_child_process_host_impl.cc
diff --git a/content/browser/browser_child_process_host_impl.cc b/content/browser/browser_child_process_host_impl.cc
index 7589e5f0134725c809aaa799dc62093fac93f9fb..de94d33dcb825047862e2ddec9153f05f9337ea9 100644
--- a/content/browser/browser_child_process_host_impl.cc
+++ b/content/browser/browser_child_process_host_impl.cc
@@ -132,13 +132,14 @@ void BrowserChildProcessHostImpl::TerminateAll() {
 
 void BrowserChildProcessHostImpl::Launch(
     SandboxedProcessLauncherDelegate* delegate,
-    CommandLine* cmd_line) {
+    base::CommandLine* cmd_line) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   GetContentClient()->browser()->AppendExtraCommandLineSwitches(
       cmd_line, data_.id);
 
-  const CommandLine& browser_command_line = *CommandLine::ForCurrentProcess();
+  const base::CommandLine& browser_command_line =
+      *base::CommandLine::ForCurrentProcess();
   static const char* kForwardSwitches[] = {
     switches::kDisableLogging,
     switches::kEnableLogging,