Adding the Previews infobar to pages that show a client LoFi image

components/data_reduction_proxy/content/browser/content_lofi_decider.cc

 // Copyright 2015 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 "components/data_reduction_proxy/content/browser/content_lofi_decider.h"
 
 #include <string>
 
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
@@ skipping 194 matching lines @@
   if (!request_info ||
       !(request_info->GetPreviewsState() & content::SERVER_LOFI_ON ||
         request_info->GetPreviewsState() & content::SERVER_LITE_PAGE_ON)) {
     return false;
   }
 
   return params::IsIncludedInLoFiEnabledFieldTrial() ||
          params::IsIncludedInLoFiControlFieldTrial();
 }
 
+bool ContentLoFiDecider::IsClientLoFiImageRequest(
+    const net::URLRequest& request) const {
+  const content::ResourceRequestInfo* request_info =
+      content::ResourceRequestInfo::ForRequest(&request);
+  return request_info &&
+         request_info->GetResourceType() == content::RESOURCE_TYPE_IMAGE &&
+         (request_info->GetPreviewsState() & content::CLIENT_LOFI_ON);
+}
+
 }  // namespace data_reduction_proxy