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

chrome/browser/extensions/extension_function.cc

Index: chrome/browser/extensions/extension_function.cc
diff --git a/chrome/browser/extensions/extension_function.cc b/chrome/browser/extensions/extension_function.cc
index 484abd7df666a2756eea28271aff92361b098b5d..3e6a39727c01ca347a0de38f8f91f9e2921f1d58 100644
--- a/chrome/browser/extensions/extension_function.cc
+++ b/chrome/browser/extensions/extension_function.cc
@@ -88,7 +88,7 @@ void ExtensionFunction::SetResult(base::Value* result) {
   results_->Append(result);
 }
 
-const ListValue* ExtensionFunction::GetResultList() {
+const base::ListValue* ExtensionFunction::GetResultList() {
   return results_.get();
 }
 
@@ -128,7 +128,7 @@ void ExtensionFunction::SendResponseImpl(bool success) {
 
   // If results were never set, we send an empty argument list.
   if (!results_)
-    results_.reset(new ListValue());
+    results_.reset(new base::ListValue());
 
   response_callback_.Run(type, *results_, GetError());
 }