Remove themes/default.dll and merge the resources into chrome.dll.

app/resource_bundle_mac.mm

Index: app/resource_bundle_mac.mm
diff --git a/app/resource_bundle_mac.mm b/app/resource_bundle_mac.mm
index 7a6139f7d5256e50b4b40c9f708fbbc780e7007b..547c84be778de7a8e27eb22ad7842843908fb7eb 100644
--- a/app/resource_bundle_mac.mm
+++ b/app/resource_bundle_mac.mm
@@ -26,7 +26,6 @@ ResourceBundle::~ResourceBundle() {
   locale_resources_data_ = NULL;
   delete resources_data_;
   resources_data_ = NULL;
-  theme_data_ = NULL;
 }
 
 namespace {
@@ -64,13 +63,6 @@ void ResourceBundle::LoadResources(const std::wstring& pref_locale) {
   DCHECK(locale_resources_data_) << "failed to load locale.pak";
 }
 
-void ResourceBundle::LoadThemeResources() {
-  // The data has been merged with chrome.pak so just set the pointer to be
-  // the same file.
-  DCHECK(resources_data_);
-  theme_data_ = resources_data_;
-}
-
 // static
 RefCountedStaticMemory* ResourceBundle::LoadResourceBytes(
     DataHandle module, int resource_id) {