Move MimeTypeResourceHandler before ThrottlingResourceHandler

chrome/browser/renderer_host/safe_browsing_resource_throttle.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 "chrome/browser/renderer_host/safe_browsing_resource_throttle.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/metrics/histogram_macros.h"
@@ skipping 151 matching lines @@
   if (state_ == STATE_CHECKING_URL ||
       state_ == STATE_DISPLAYING_BLOCKING_PAGE) {
     defer_state_ = DEFERRED_PROCESSING;
     defer_start_time_ = base::TimeTicks::Now();
     *defer = true;
     BeginNetLogEvent(NetLog::TYPE_SAFE_BROWSING_DEFERRED, request_->url(),
                      "defer_reason", "at_response");
   }
 }
 
+bool SafeBrowsingResourceThrottle::MustProcessResponseBeforeMimeSniffing() {
+  return true;
+}
+
 void SafeBrowsingResourceThrottle::WillRedirectRequest(
     const net::RedirectInfo& redirect_info,
     bool* defer) {
   CHECK_EQ(defer_state_, DEFERRED_NONE);
 
   // Prev check completed and was safe.
   if (state_ == STATE_NONE) {
     // Save the redirect urls for possible malware detail reporting later.
     redirect_urls_.push_back(redirect_info.new_url);
 
@@ skipping 211 matching lines @@
                        unchecked_redirect_url_, "defer_reason",
                        "resumed_redirect");
     }
   }
 
   if (resume) {
     defer_state_ = DEFERRED_NONE;
     controller()->Resume();
   }
 }