Make base use the proper Value namespace

base/test/trace_event_analyzer.cc

Index: base/test/trace_event_analyzer.cc
diff --git a/base/test/trace_event_analyzer.cc b/base/test/trace_event_analyzer.cc
index 8457ce97cf63ac318b7eb50b98aa7a1e1aa2d954..94d49a4636283d748b13b015214e7e2789b55ca1 100644
--- a/base/test/trace_event_analyzer.cc
+++ b/base/test/trace_event_analyzer.cc
@@ -643,12 +643,12 @@ bool ParseEventsFromJson(const std::string& json,
   scoped_ptr<base::Value> root;
   root.reset(base::JSONReader::Read(json));
 
-  ListValue* root_list = NULL;
+  base::ListValue* root_list = NULL;
   if (!root.get() || !root->GetAsList(&root_list))
     return false;
 
   for (size_t i = 0; i < root_list->GetSize(); ++i) {
-    Value* item = NULL;
+    base::Value* item = NULL;
     if (root_list->Get(i, &item)) {
       TraceEvent event;
       if (event.SetFromJSON(item))