Generalize content::URLDataSource so that it can be used by the network service.

chrome/browser/search/local_ntp_source.h

Index: chrome/browser/search/local_ntp_source.h
diff --git a/chrome/browser/search/local_ntp_source.h b/chrome/browser/search/local_ntp_source.h
index cc4be714650997d71c99a674c2362dac06d606f3..f3f7f489f5803ba866dff1151aa3f0a9a77988d6 100644
--- a/chrome/browser/search/local_ntp_source.h
+++ b/chrome/browser/search/local_ntp_source.h
@@ -40,7 +40,9 @@ class LocalNtpSource : public content::URLDataSource,
       const content::URLDataSource::GotDataCallback& callback) override;
   std::string GetMimeType(const std::string& path) const override;
   bool AllowCaching() const override;
-  bool ShouldServiceRequest(const net::URLRequest* request) const override;
+  bool ShouldServiceRequest(const GURL& url,
+                            content::ResourceContext* resource_context,
+                            int render_process_id) const override;
   std::string GetContentSecurityPolicyScriptSrc() const override;
   std::string GetContentSecurityPolicyChildSrc() const override;