New Tab Page: chrome-search://local-ntp/ files should not be cachable

chrome/browser/search/local_ntp_source.cc

Index: chrome/browser/search/local_ntp_source.cc
diff --git a/chrome/browser/search/local_ntp_source.cc b/chrome/browser/search/local_ntp_source.cc
index b192b0beb166311c2e3ca3e34e39ec621764857f..839910c09f2170a86fcb4edc7de12177691e0552 100644
--- a/chrome/browser/search/local_ntp_source.cc
+++ b/chrome/browser/search/local_ntp_source.cc
@@ -250,6 +250,10 @@ std::string LocalNtpSource::GetMimeType(
   return std::string();
 }
 
+bool LocalNtpSource::AllowCaching() const {
+  return false;

[Marc Treib, 2016/11/29 14:52:22]

Could you add a comment about why this is necessary?

[Takashi Toyoshima, 2016/11/30 05:54:38]

Done.

+}
+
 bool LocalNtpSource::ShouldServiceRequest(
     const net::URLRequest* request) const {
   DCHECK(request->url().host_piece() == chrome::kChromeSearchLocalNtpHost);