Update from https://crrev.com/311076

net/filter/sdch_filter.cc

 // Copyright 2014 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/filter/sdch_filter.h"
 
 #include <ctype.h>
 #include <limits.h>
 
 #include <algorithm>
@@ skipping 159 matching lines @@
         UMA_HISTOGRAM_PERCENTAGE("Sdch3.Network_Decode_Ratio_a",
             static_cast<int>(
                 (filter_context_.GetByteReadCount() * 100) / output_bytes_));
       UMA_HISTOGRAM_COUNTS("Sdch3.Network_Decode_Bytes_VcdiffOut_a",
                            output_bytes_);
       filter_context_.RecordPacketStats(FilterContext::SDCH_DECODE);
 
       // Allow latency experiments to proceed.
       url_request_context_->sdch_manager()->SetAllowLatencyExperiment(
           url_, true);
+
+      // Notify successful dictionary usage.
+      url_request_context_->sdch_manager()->OnDictionaryUsed(
+          dictionary_->server_hash());
+
       return;
     }
     case PASS_THROUGH: {
       filter_context_.RecordPacketStats(FilterContext::SDCH_PASSTHROUGH);
       return;
     }
     case DECODING_UNINITIALIZED: {
       LogSdchProblem(SDCH_UNINITIALIZED);
       return;
     }
@@ skipping 341 matching lines @@
 }
 
 void SdchFilter::LogSdchProblem(SdchProblemCode problem) {
   SdchManager::SdchErrorRecovery(problem);
   filter_context_.GetNetLog().AddEvent(
       NetLog::TYPE_SDCH_DECODING_ERROR,
       base::Bind(&NetLogSdchResourceProblemCallback, problem));
 }
 
 }  // namespace net