Resolve issue from feedback for 1417363004

chrome/browser/local_discovery/privet_http.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_LOCAL_DISCOVERY_PRIVET_HTTP_H_
 #define CHROME_BROWSER_LOCAL_DISCOVERY_PRIVET_HTTP_H_
 
 #include <string>
 
 #include "base/callback.h"
@@ skipping 45 matching lines @@
 
   // Creates a URL fetcher for PrivetV1.
   virtual scoped_ptr<PrivetURLFetcher> CreateURLFetcher(
       const GURL& url,
       net::URLFetcher::RequestType request_type,
       PrivetURLFetcher::Delegate* delegate) = 0;
 
   virtual void RefreshPrivetToken(
       const PrivetURLFetcher::TokenCallback& token_callback) = 0;
 
-  // After this call HTTPS will be used. Only requests to the server with
+  // After this call only HTTPS will be used. Only requests to the server with
   // matching certificate will be allowed.
+  // Privet v3 devices must supports HTTPS. However the device has self-signed

[Aleksey Shlyapnikov, 2015/10/30 21:40:00]

support

[Vitaly Buka (NO REVIEWS), 2015/10/30 21:49:32]

Done.

+  // certificate so normal validation is not useful. The only know information

[Aleksey Shlyapnikov, 2015/10/30 21:40:00]

known

[Vitaly Buka (NO REVIEWS), 2015/10/30 21:49:32]

Done.

+  // about device is fingerprint of the certificate.
+  // Before using HTTPS, Privet v3 pairing generates a shared secret using
+  // SPAKE2 over an insecure channel. Then the device sends the fingerprint
+  // to the client, over the insecure channel, but signed using the shared
+  // secret.
+  // More info on pairing:
+  // https://developers.google.com/cloud-devices/v1/reference/local-api/pairing_start
   virtual void SwitchToHttps(
       uint16_t port,
       const net::SHA256HashValue& certificate_fingerprint) = 0;
 
   virtual bool IsInHttpsMode() const = 0;
 };
 
 class PrivetDataReadOperation {
  public:
   enum ResponseType {
@@ skipping 135 matching lines @@
   virtual scoped_ptr<PrivetJSONOperation> CreateCapabilitiesOperation(
       const PrivetJSONOperation::ResultCallback& callback) = 0;
 
   // Creates operation to submit print job to local printer.
   virtual scoped_ptr<PrivetLocalPrintOperation> CreateLocalPrintOperation(
       PrivetLocalPrintOperation::Delegate* delegate) = 0;
 };
 
 }  // namespace local_discovery
 #endif  // CHROME_BROWSER_LOCAL_DISCOVERY_PRIVET_HTTP_H_