Select theme resources from ResourceBundle at requested scale factor.

chrome/renderer/resource_bundle_source_map.cc

Index: chrome/renderer/resource_bundle_source_map.cc
diff --git a/chrome/renderer/resource_bundle_source_map.cc b/chrome/renderer/resource_bundle_source_map.cc
index 5a4258204790d8485bd0183389115c36f4ed6f30..86ee68db6721e8d355d24f66ff593c97c626c2b1 100644
--- a/chrome/renderer/resource_bundle_source_map.cc
+++ b/chrome/renderer/resource_bundle_source_map.cc
@@ -4,6 +4,7 @@
 
 #include "chrome/renderer/resource_bundle_source_map.h"
 
+#include "ui/base/layout.h"
 #include "ui/base/resource/resource_bundle.h"
 
 ResourceBundleSourceMap::ResourceBundleSourceMap(
@@ -24,7 +25,8 @@ v8::Handle<v8::Value> ResourceBundleSourceMap::GetSource(
   if (!Contains(name))
     return v8::Undefined();
   int resource_id = resource_id_map_[name];
-  return ConvertString(resource_bundle_->GetRawDataResource(resource_id));
+  return ConvertString(resource_bundle_->GetRawDataResource(
+      resource_id, ui::SCALE_FACTOR_NONE));
 }
 
 bool ResourceBundleSourceMap::Contains(const std::string& name) {