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

content/browser/appcache/appcache_url_request_job.cc

Index: content/browser/appcache/appcache_url_request_job.cc
diff --git a/content/browser/appcache/appcache_url_request_job.cc b/content/browser/appcache/appcache_url_request_job.cc
index b12a5b6db5f27bebe13ece28cb114af333b20e7b..1f45d14f925f35bc037f329b27c7afe3226cb647 100644
--- a/content/browser/appcache/appcache_url_request_job.cc
+++ b/content/browser/appcache/appcache_url_request_job.cc
@@ -134,8 +134,8 @@ void AppCacheURLRequestJob::BeginDelivery() {
 }
 
 void AppCacheURLRequestJob::BeginExecutableHandlerDelivery() {
-  DCHECK(CommandLine::ForCurrentProcess()->
-            HasSwitch(kEnableExecutableHandlers));
+  DCHECK(base::CommandLine::ForCurrentProcess()->HasSwitch(
+      kEnableExecutableHandlers));
   if (!storage_->service()->handler_factory()) {
     BeginErrorDelivery("missing handler factory");
     return;