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

content/browser/media/media_internals_handler.cc

Index: content/browser/media/media_internals_handler.cc
diff --git a/content/browser/media/media_internals_handler.cc b/content/browser/media/media_internals_handler.cc
index 858cfa33aebbaad57bb14f61bc26167d0c9f1177..1ea6b04c663f7015d028810c2d33ac9dc424a3e1 100644
--- a/content/browser/media/media_internals_handler.cc
+++ b/content/browser/media/media_internals_handler.cc
@@ -31,7 +31,8 @@ void MediaInternalsMessageHandler::RegisterMessages() {
                  base::Unretained(this)));
 }
 
-void MediaInternalsMessageHandler::OnGetEverything(const ListValue* list) {
+void MediaInternalsMessageHandler::OnGetEverything(
+    const base::ListValue* list) {
   proxy_->GetEverything();
 }