Update uses of Value in chromeos/, cloud_print/, components/, content/ to use the base:: namespace.

content/browser/devtools/devtools_tracing_handler.cc

Index: content/browser/devtools/devtools_tracing_handler.cc
diff --git a/content/browser/devtools/devtools_tracing_handler.cc b/content/browser/devtools/devtools_tracing_handler.cc
index e9f6cf10b294d161b5a826e1bae48e8062d012da..5b0d68c221e0122876ac7b38eb546c3db0d9cde5 100644
--- a/content/browser/devtools/devtools_tracing_handler.cc
+++ b/content/browser/devtools/devtools_tracing_handler.cc
@@ -69,10 +69,10 @@ void DevToolsTracingHandler::ReadRecordingResult(
   if (trace_data->data().size()) {
     scoped_ptr<base::Value> trace_value(base::JSONReader::Read(
         trace_data->data()));
-    DictionaryValue* dictionary = NULL;
+    base::DictionaryValue* dictionary = NULL;
     bool ok = trace_value->GetAsDictionary(&dictionary);
     DCHECK(ok);
-    ListValue* list = NULL;
+    base::ListValue* list = NULL;
     ok = dictionary->GetList("traceEvents", &list);
     DCHECK(ok);
     std::string buffer;