sdch: add Sdch3.AdvertisedWithSecureScheme histogram

net/base/sdch_manager.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/base/sdch_manager.h"
 
 #include "base/base64.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 264 matching lines @@
     if (entry.second->data.Expired())
       continue;
     ++count;
     result->AddDictionary(entry.first, entry.second);
   }
 
   if (count == 0)
     return NULL;
 
   UMA_HISTOGRAM_COUNTS("Sdch3.Advertisement_Count", count);
+  UMA_HISTOGRAM_BOOLEAN("Sdch3.AdvertisedWithSecureScheme",
+                        target_url.SchemeIsSecure());
 
   return result.Pass();
 }
 
 scoped_ptr<SdchManager::DictionarySet>
 SdchManager::GetDictionarySetByHash(
     const GURL& target_url,
     const std::string& server_hash,
     SdchProblemCode* problem_code) {
   scoped_ptr<SdchManager::DictionarySet> result;
@@ skipping 222 matching lines @@
       entry_dict->SetInteger("tries", it->second.count);
     entry_dict->SetInteger("reason", it->second.reason);
     entry_list->Append(entry_dict);
   }
   value->Set("blacklisted", entry_list);
 
   return value;
 }
 
 }  // namespace net