Send an image-like 'Accept' header for favicons.

content/browser/loader/mime_sniffing_resource_handler.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 "content/browser/loader/mime_sniffing_resource_handler.h"
 
 #include <utility>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 88 matching lines @@
 bool MimeSniffingResourceHandler::OnWillStart(const GURL& url, bool* defer) {
   const char* accept_value = nullptr;
   switch (GetRequestInfo()->GetResourceType()) {
     case RESOURCE_TYPE_MAIN_FRAME:
     case RESOURCE_TYPE_SUB_FRAME:
       accept_value = kFrameAcceptHeader;
       break;
     case RESOURCE_TYPE_STYLESHEET:
       accept_value = kStylesheetAcceptHeader;
       break;
+    case RESOURCE_TYPE_FAVICON:
     case RESOURCE_TYPE_IMAGE:
       accept_value = kImageAcceptHeader;
       break;
     case RESOURCE_TYPE_SCRIPT:
     case RESOURCE_TYPE_FONT_RESOURCE:
     case RESOURCE_TYPE_SUB_RESOURCE:
     case RESOURCE_TYPE_OBJECT:
     case RESOURCE_TYPE_MEDIA:
     case RESOURCE_TYPE_WORKER:
     case RESOURCE_TYPE_SHARED_WORKER:
     case RESOURCE_TYPE_PREFETCH:
-    case RESOURCE_TYPE_FAVICON:
     case RESOURCE_TYPE_XHR:
     case RESOURCE_TYPE_PING:
     case RESOURCE_TYPE_SERVICE_WORKER:
     case RESOURCE_TYPE_CSP_REPORT:
     case RESOURCE_TYPE_PLUGIN_RESOURCE:
       accept_value = kDefaultAcceptHeader;
       break;
     case RESOURCE_TYPE_LAST_TYPE:
       NOTREACHED();
       break;
@@ skipping 378 matching lines @@
 
 void MimeSniffingResourceHandler::OnPluginsLoaded(
     const std::vector<WebPluginInfo>& plugins) {
   // No longer blocking on the plugins being loaded.
   request()->LogUnblocked();
   if (state_ == STATE_BUFFERING)
     AdvanceState();
 }
 
 }  // namespace content