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

chrome/browser/extensions/webstore_install_helper.cc

Index: chrome/browser/extensions/webstore_install_helper.cc
diff --git a/chrome/browser/extensions/webstore_install_helper.cc b/chrome/browser/extensions/webstore_install_helper.cc
index 67bbbf16e56bfb4dcf3b34fa3619a083df6d90c8..323cba432efa716d10451f0f4c7ce591075a3cd7 100644
--- a/chrome/browser/extensions/webstore_install_helper.cc
+++ b/chrome/browser/extensions/webstore_install_helper.cc
@@ -149,7 +149,8 @@ void WebstoreInstallHelper::OnDecodeImageFailed() {
   ReportResultsIfComplete();
 }
 
-void WebstoreInstallHelper::OnJSONParseSucceeded(const ListValue& wrapper) {
+void WebstoreInstallHelper::OnJSONParseSucceeded(
+    const base::ListValue& wrapper) {
   CHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   manifest_parse_complete_ = true;
   const Value* value = NULL;