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

chrome/browser/extensions/api/sync_file_system/sync_file_system_api.cc

Index: chrome/browser/extensions/api/sync_file_system/sync_file_system_api.cc
diff --git a/chrome/browser/extensions/api/sync_file_system/sync_file_system_api.cc b/chrome/browser/extensions/api/sync_file_system/sync_file_system_api.cc
index cb0c0fd3267a9fb498a16bd41533285127bf5d13..a0274b2e68c6db53248f9837a849a3ec232a7dcf 100644
--- a/chrome/browser/extensions/api/sync_file_system/sync_file_system_api.cc
+++ b/chrome/browser/extensions/api/sync_file_system/sync_file_system_api.cc
@@ -171,7 +171,7 @@ void SyncFileSystemRequestFileSystemFunction::DidOpenFileSystem(
     return;
   }
 
-  DictionaryValue* dict = new DictionaryValue();
+  base::DictionaryValue* dict = new base::DictionaryValue();
   SetResult(dict);
   dict->SetString("name", file_system_name);
   dict->SetString("root", root_url.spec());
@@ -220,7 +220,7 @@ SyncFileSystemGetFileStatusesFunction::~SyncFileSystemGetFileStatusesFunction(
 
 bool SyncFileSystemGetFileStatusesFunction::RunImpl() {
   // All FileEntries converted into array of URL Strings in JS custom bindings.
-  ListValue* file_entry_urls = NULL;
+  base::ListValue* file_entry_urls = NULL;
   EXTENSION_FUNCTION_VALIDATE(args_->GetList(0, &file_entry_urls));
 
   scoped_refptr<fileapi::FileSystemContext> file_system_context =
@@ -274,7 +274,7 @@ void SyncFileSystemGetFileStatusesFunction::DidGetFileStatus(
   base::ListValue* status_array = new base::ListValue();
   for (URLToStatusMap::iterator it = file_sync_statuses_.begin();
        it != file_sync_statuses_.end(); ++it) {
-    DictionaryValue* dict = new DictionaryValue();
+    base::DictionaryValue* dict = new base::DictionaryValue();
     status_array->Append(dict);
 
     fileapi::FileSystemURL url = it->first;