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

content/browser/service_worker/service_worker_browsertest.cc

Index: content/browser/service_worker/service_worker_browsertest.cc
diff --git a/content/browser/service_worker/service_worker_browsertest.cc b/content/browser/service_worker/service_worker_browsertest.cc
index 6986d5e03126fe0f5c9000eba24cabc52f3de661..ef9be786a767ab69c5a70b5fb7888371d041ffe8 100644
--- a/content/browser/service_worker/service_worker_browsertest.cc
+++ b/content/browser/service_worker/service_worker_browsertest.cc
@@ -178,7 +178,7 @@ class ServiceWorkerBrowserTest : public ContentBrowserTest {
  protected:
   typedef ServiceWorkerBrowserTest self;
 
-  virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
+  virtual void SetUpCommandLine(base::CommandLine* command_line) OVERRIDE {
     command_line->AppendSwitch(
         switches::kEnableExperimentalWebPlatformFeatures);
   }
@@ -642,7 +642,7 @@ IN_PROC_BROWSER_TEST_F(ServiceWorkerVersionBrowserTest,
 }
 
 IN_PROC_BROWSER_TEST_F(ServiceWorkerVersionBrowserTest, SyncEventHandled) {
-  CommandLine* command_line = CommandLine::ForCurrentProcess();
+  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
   command_line->AppendSwitch(switches::kEnableServiceWorkerSync);
 
   RunOnIOThread(base::Bind(