Convert most of extensions and some other random stuff to using the base namespace for Values.

chrome/browser/extensions/api/identity/web_auth_flow.cc

Index: chrome/browser/extensions/api/identity/web_auth_flow.cc
diff --git a/chrome/browser/extensions/api/identity/web_auth_flow.cc b/chrome/browser/extensions/api/identity/web_auth_flow.cc
index b0ad7610de727746ee82798915911d90f91a655c..84fa56b595b7fd90004fd901899dd5d427b8c14e 100644
--- a/chrome/browser/extensions/api/identity/web_auth_flow.cc
+++ b/chrome/browser/extensions/api/identity/web_auth_flow.cc
@@ -77,7 +77,7 @@ void WebAuthFlow::Start() {
   DCHECK(success);
 
   // identityPrivate.onWebFlowRequest(shell_window_key, provider_url_, mode_)
-  scoped_ptr<ListValue> args(new ListValue());
+  scoped_ptr<base::ListValue> args(new base::ListValue());
   args->AppendString(shell_window_key_);
   args->AppendString(provider_url_.spec());
   if (mode_ == WebAuthFlow::INTERACTIVE)