Http cache: Always revalidate PUT and DELETE requests.

net/http/http_cache_transaction.cc

 // Copyright (c) 2012 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.
 
 #include "net/http/http_cache_transaction.h"
 
 #include "build/build_config.h"
 
 #if defined(OS_POSIX)
 #include <unistd.h>
@@ skipping 1752 matching lines @@
   // TODO(darin): need to do more work here:
   //  - make sure we have a matching request method
   //  - watch out for cached responses that depend on authentication
   // In playback mode, nothing requires validation.
   if (cache_->mode() == net::HttpCache::PLAYBACK)
     return false;
 
   if (effective_load_flags_ & LOAD_VALIDATE_CACHE)
     return true;
 
+  if (request_->method == "PUT" || request_->method == "DELETE")
+    return true;
+
   if (response_.headers->RequiresValidation(
           response_.request_time, response_.response_time, Time::Now()))
     return true;
 
   // Since Vary header computation is fairly expensive, we save it for last.
   if (response_.vary_data.is_valid() &&
       !response_.vary_data.MatchesRequest(*request_, *response_.headers))
     return true;
 
   return false;
@@ skipping 393 matching lines @@
   if (transaction_delegate_)
     transaction_delegate_->OnCacheActionStart();
 }
 
 void HttpCache::Transaction::ReportCacheActionFinish() {
   if (transaction_delegate_)
     transaction_delegate_->OnCacheActionFinish();
 }
 
 }  // namespace net