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

components/data_reduction_proxy/core/common/lofi_decider.h

 // 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.
 
 #ifndef COMPONENTS_DATA_REDUCTION_PROXY_CORE_BROWSER_LOFI_DECIDER_H_
 #define COMPONENTS_DATA_REDUCTION_PROXY_CORE_BROWSER_LOFI_DECIDER_H_
 
 #include "base/macros.h"
 
 namespace net {
@@ skipping 45 matching lines @@
 
   // Adds a directive to tell the server to ignore blacklists when a Lite Page
   // preview is being requested due to command line flags being set.
   virtual void MaybeSetIgnorePreviewsBlacklistDirective(
       net::HttpRequestHeaders* headers) const = 0;
 
   // Returns true if the Lo-Fi specific UMA should be recorded. It is set to
   // true if Lo-Fi is enabled for |request|, Chrome session is in Lo-Fi
   // Enabled or Control field trial, and the network quality was slow.
   virtual bool ShouldRecordLoFiUMA(const net::URLRequest& request) const = 0;
+
+  // Returns whether the request was a client-side Lo-Fi image request.
+  virtual bool IsClientLoFiImageRequest(
+      const net::URLRequest& request) const = 0;
 };
 
 }  // namespace data_reduction_proxy
 
 #endif  // COMPONENTS_DATA_REDUCTION_PROXY_CORE_BROWSER_LOFI_DECIDER_H_