Update some uses of Value in chrome/browser to use the base:: namespace.

chrome/browser/chromeos/notifications/balloon_view_host_chromeos.cc

Index: chrome/browser/chromeos/notifications/balloon_view_host_chromeos.cc
diff --git a/chrome/browser/chromeos/notifications/balloon_view_host_chromeos.cc b/chrome/browser/chromeos/notifications/balloon_view_host_chromeos.cc
index 969142e95d44966abf486eaeec1253fcf60992f7..3f79c4bd1e43f7d99008761f50d78247fd8ceafd 100644
--- a/chrome/browser/chromeos/notifications/balloon_view_host_chromeos.cc
+++ b/chrome/browser/chromeos/notifications/balloon_view_host_chromeos.cc
@@ -41,7 +41,7 @@ bool BalloonViewHost::HandleContextMenu(
 void BalloonViewHost::WebUISend(WebContents* tab,
                                 const GURL& source_url,
                                 const std::string& name,
-                                const ListValue& args) {
+                                const base::ListValue& args) {
   // Look up the callback for this message.
   MessageCallbackMap::const_iterator callback =
       message_callbacks_.find(name);