Modify IPC call to properly record the PLT histograms for LoFi.

components/data_reduction_proxy/core/browser/data_reduction_proxy_config.h

Index: components/data_reduction_proxy/core/browser/data_reduction_proxy_config.h
diff --git a/components/data_reduction_proxy/core/browser/data_reduction_proxy_config.h b/components/data_reduction_proxy/core/browser/data_reduction_proxy_config.h
index 64f75897543b26c1eae903f3b253e1ef41fcdad4..c0083cb1dbfe0e36040a9e2096cbd84a1b871ac8 100644
--- a/components/data_reduction_proxy/core/browser/data_reduction_proxy_config.h
+++ b/components/data_reduction_proxy/core/browser/data_reduction_proxy_config.h
@@ -186,6 +186,19 @@ class DataReductionProxyConfig
   // tied to whether the Data Reduction Proxy is enabled.
   bool promo_allowed() const;
 
+  // Returns true if current network conditions are worse than the ones
+  // specified in the enabled or control field trial group parameters.
+  // Virtualized for mocking.
+  virtual bool IsNetworkBad() const;
+
+  // Returns true if this client is part of LoFi enabled field trial.
+  // Virtualized for mocking.
+  virtual bool IsIncludedInLoFiEnabledFieldTrial() const;
+
+  // Returns true if this client is part of LoFi control field trial.
+  // Virtualized for mocking.
+  virtual bool IsIncludedInLoFiControlFieldTrial() const;
+
  protected:
   // Writes a warning to the log that is used in backend processing of
   // customer feedback. Virtual so tests can mock it for verification.