Do not send lofi_active_control

components/data_reduction_proxy/core/common/lofi_decider.h

Index: components/data_reduction_proxy/core/common/lofi_decider.h
diff --git a/components/data_reduction_proxy/core/common/lofi_decider.h b/components/data_reduction_proxy/core/common/lofi_decider.h
index da635106230f1fdbcbdb0c1dc9e5385b6448a9e5..d55f3f3726cc529c422a58f1fd7b09cddebeae7e 100644
--- a/components/data_reduction_proxy/core/common/lofi_decider.h
+++ b/components/data_reduction_proxy/core/common/lofi_decider.h
@@ -28,8 +28,7 @@ class LoFiDecider {
   // |request| is using Lo-Fi mode, adds the "q=low" directive to the |headers|.
   // If the |request| is using Lo-Fi preview mode, and it is a main frame
   // request adds the "q=preview" and it is a main frame request directive to
-  // the |headers|. If the user is in the experiment control group and Lo-Fi is
-  // on, adds the experiment directive "exp=lofi_active_control".
+  // the |headers|.
   virtual bool MaybeAddLoFiDirectiveToHeaders(
       const net::URLRequest& request,
       net::HttpRequestHeaders* headers) const = 0;