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

chrome/browser/services/gcm/gcm_desktop_utils.cc

Index: chrome/browser/services/gcm/gcm_desktop_utils.cc
diff --git a/chrome/browser/services/gcm/gcm_desktop_utils.cc b/chrome/browser/services/gcm/gcm_desktop_utils.cc
index 83ee33cb15257fd44579b3d635b5fb373845f90f..a3259c212930c2ef38fed209fe3a6610552039fb 100644
--- a/chrome/browser/services/gcm/gcm_desktop_utils.cc
+++ b/chrome/browser/services/gcm/gcm_desktop_utils.cc
@@ -75,8 +75,8 @@ GCMClient::ChromeBuildInfo GetChromeBuildInfo() {
 }
 
 std::string GetChannelStatusRequestUrl() {
-  GURL sync_url(
-      ProfileSyncService::GetSyncServiceURL(*CommandLine::ForCurrentProcess()));
+  GURL sync_url(ProfileSyncService::GetSyncServiceURL(
+      *base::CommandLine::ForCurrentProcess()));
   return sync_url.spec() + kChannelStatusRelativePath;
 }