webui: minimize webui flicker.

chrome/browser/ui/webui/options/options_ui.cc

Index: chrome/browser/ui/webui/options/options_ui.cc
diff --git a/chrome/browser/ui/webui/options/options_ui.cc b/chrome/browser/ui/webui/options/options_ui.cc
index cd5a3e1f343d84702dabbfe638b967faee0a9bbe..b0fe288fab51b6018d1d8e5abbaa9053542f3a61 100644
--- a/chrome/browser/ui/webui/options/options_ui.cc
+++ b/chrome/browser/ui/webui/options/options_ui.cc
@@ -179,9 +179,11 @@ void OptionsUIHTMLSource::StartDataRequest(
     response_bytes = ui::ResourceBundle::GetSharedInstance().
         LoadDataResourceBytes(IDR_OPTIONS_BUNDLE_JS);
   } else {
-    // Return (and cache) the main options html page as the default.
-    response_bytes = ui::ResourceBundle::GetSharedInstance().
-        LoadDataResourceBytes(IDR_OPTIONS_HTML);
+    // Return the main options html page as the default.
+    std::string html_page = webui::ReplaceFontFamilyAndSize(
+        ui::ResourceBundle::GetSharedInstance().
+            GetRawDataResource(IDR_OPTIONS_HTML).as_string());

[Dan Beam, 2014/11/22 04:27:12]

this probably makes more copies than I'd like, but just let me know if you like
this approach

+    response_bytes = base::RefCountedString::TakeString(&html_page);
   }
 
   callback.Run(response_bytes.get());