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

chrome/browser/extensions/api/tab_capture/tab_capture_registry.cc

Index: chrome/browser/extensions/api/tab_capture/tab_capture_registry.cc
diff --git a/chrome/browser/extensions/api/tab_capture/tab_capture_registry.cc b/chrome/browser/extensions/api/tab_capture/tab_capture_registry.cc
index bd2d5c1479510840311530ba6a76e4650c52f3e5..88d37be052726464502426f1fbacd567efca8f0f 100644
--- a/chrome/browser/extensions/api/tab_capture/tab_capture_registry.cc
+++ b/chrome/browser/extensions/api/tab_capture/tab_capture_registry.cc
@@ -312,7 +312,7 @@ void TabCaptureRegistry::DispatchStatusChangeEvent(
   info->status = request->status;
   info->fullscreen = request->fullscreen;
 
-  scoped_ptr<base::ListValue> args(new ListValue());
+  scoped_ptr<base::ListValue> args(new base::ListValue());
   args->Append(info->ToValue().release());
   scoped_ptr<Event> event(new Event(
       extensions::event_names::kOnTabCaptureStatusChanged, args.Pass()));