Pass raw response with Context-Encoding sdch if support is not configured.

net/url_request/url_request_http_job.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/url_request/url_request_http_job.h"
 
 #include <vector>
 
 #include "base/base_switches.h"
 #include "base/bind.h"
@@ skipping 1053 matching lines @@
   size_t iter = 0;
   while (headers->EnumerateHeader(&iter, "Content-Encoding", &type)) {
     if (base::LowerCaseEqualsASCII(type, kBrotli)) {
       types.push_back(SourceStream::TYPE_BROTLI);
     } else if (base::LowerCaseEqualsASCII(type, kDeflate)) {
       types.push_back(SourceStream::TYPE_DEFLATE);
     } else if (base::LowerCaseEqualsASCII(type, kGZip) ||
                base::LowerCaseEqualsASCII(type, kXGZip)) {
       types.push_back(SourceStream::TYPE_GZIP);
     } else if (base::LowerCaseEqualsASCII(type, kSdch)) {
+      // If SDCH support is not configured, pass through raw response.
+      if (!request()->context()->sdch_manager())
+        return upstream;
       types.push_back(SourceStream::TYPE_SDCH);
     } else {
       // Unknown encoding type. Pass through raw response body.
       return upstream;
     }
   }
 
   // Sdch specific hacks:
   std::string mime_type;
   bool success = GetMimeType(&mime_type);
@@ skipping 454 matching lines @@
   awaiting_callback_ = false;
 
   // Notify NetworkQualityEstimator.
   NetworkQualityEstimator* network_quality_estimator =
       request()->context()->network_quality_estimator();
   if (network_quality_estimator)
     network_quality_estimator->NotifyURLRequestDestroyed(*request());
 }
 
 }  // namespace net