Turns on new CPAT protocol support by default.

components/data_reduction_proxy/core/browser/data_reduction_proxy_network_delegate_unittest.cc

Index: components/data_reduction_proxy/core/browser/data_reduction_proxy_network_delegate_unittest.cc
diff --git a/components/data_reduction_proxy/core/browser/data_reduction_proxy_network_delegate_unittest.cc b/components/data_reduction_proxy/core/browser/data_reduction_proxy_network_delegate_unittest.cc
index 52254e3c44bc13968d5725f02419a73c93c4b156..66e41e08d1e362f3331806186e8b3ffd0be9437e 100644
--- a/components/data_reduction_proxy/core/browser/data_reduction_proxy_network_delegate_unittest.cc
+++ b/components/data_reduction_proxy/core/browser/data_reduction_proxy_network_delegate_unittest.cc
@@ -24,6 +24,7 @@
 #include "base/strings/string_util.h"
 #include "base/test/histogram_tester.h"
 #include "base/test/mock_entropy_provider.h"
+#include "base/test/scoped_feature_list.h"
 #include "base/time/time.h"
 #include "base/values.h"
 #include "build/build_config.h"
@@ -32,6 +33,7 @@
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_metrics.h"
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_request_options.h"
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_test_utils.h"
+#include "components/data_reduction_proxy/core/common/data_reduction_proxy_features.h"
 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_headers.h"
 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_headers_test_utils.h"
 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_params_test_utils.h"
@@ -1251,6 +1253,11 @@ TEST_F(DataReductionProxyNetworkDelegateTest, RedirectRequestDataCleared) {
 }
 
 TEST_F(DataReductionProxyNetworkDelegateTest, NetHistograms) {
+  // Turn off proxy-decides-transform feature for these unit tests.
+  base::test::ScopedFeatureList scoped_feature_list;
+  scoped_feature_list.InitAndDisableFeature(
+      features::kDataReductionProxyDecidesTransform);
+
   Init(USE_INSECURE_PROXY, false);
 
   base::HistogramTester histogram_tester;