Specify AllowCaching = false for dynamically-generated contents

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 9ad6fbba6fc8cb59ef620c1af3e5ffc2f7bce361..f82ca20dbdb951c95a32ba1c3131ce782885d150 100644
--- a/chrome/browser/ui/webui/options/options_ui.cc
+++ b/chrome/browser/ui/webui/options/options_ui.cc
@@ -200,6 +200,7 @@ class OptionsUIHTMLSource : public content::URLDataSource {
       const std::string& path,
       const content::ResourceRequestInfo::WebContentsGetter& wc_getter,
       const content::URLDataSource::GotDataCallback& callback) override;
+  bool AllowCaching() const override;
   std::string GetMimeType(const std::string&) const override;
   bool ShouldDenyXFrameOptions() const override;
 
@@ -270,6 +271,12 @@ void OptionsUIHTMLSource::StartDataRequest(
   callback.Run(response_bytes.get());
 }
 
+bool OptionsUIHTMLSource::AllowCaching() const {
+  // Should not be cached to reflect dynamically-generated contents that depends
+  // on the current locale.
+  return false;
+}
+
 std::string OptionsUIHTMLSource::GetMimeType(const std::string& path) const {
   if (base::EndsWith(path, ".js", base::CompareCase::INSENSITIVE_ASCII))
     return "application/javascript";