DataReductionProxyStatisticsPrefs should support WeakPtr

components/data_reduction_proxy/core/browser/data_reduction_proxy_io_data_unittest.cc

Index: components/data_reduction_proxy/core/browser/data_reduction_proxy_io_data_unittest.cc
diff --git a/components/data_reduction_proxy/core/browser/data_reduction_proxy_io_data_unittest.cc b/components/data_reduction_proxy/core/browser/data_reduction_proxy_io_data_unittest.cc
index 641f625974aba96811bc24520ff13e61fd2b7c3c..a0ebac6458ad83823f8a6fa15f65a2d71a70004a 100644
--- a/components/data_reduction_proxy/core/browser/data_reduction_proxy_io_data_unittest.cc
+++ b/components/data_reduction_proxy/core/browser/data_reduction_proxy_io_data_unittest.cc
@@ -109,6 +109,8 @@ TEST_F(DataReductionProxyIODataTest, TestConstruction) {
       new DataReductionProxyIOData(
           Client::UNKNOWN, make_scoped_ptr(statistics_prefs), settings(),
           net_log(), message_loop_proxy(), message_loop_proxy()));
+  settings()->SetDataReductionProxyStatisticsPrefs(
+      io_data->PassStatisticsPrefs());
 
   // Check that io_data creates an interceptor. Such an interceptor is
   // thoroughly tested by DataReductionProxyInterceptoTest.
@@ -118,13 +120,7 @@ TEST_F(DataReductionProxyIODataTest, TestConstruction) {
 
   // At this point io_data->statistics_prefs() should be set and compression
   // statistics logging should be enabled.
-  EXPECT_EQ(statistics_prefs, io_data->statistics_prefs());
-
-  // Check if explicitly enabling compression statistics logging results in
-  // a new logging object being created.
-  io_data->EnableCompressionStatisticsLogging(prefs(), base::TimeDelta());
-  EXPECT_NE(statistics_prefs, io_data->statistics_prefs());
-  EXPECT_TRUE(io_data->statistics_prefs());
+  EXPECT_EQ(statistics_prefs, settings()->statistics_prefs().get());
 
   // When creating a network delegate, expect that it properly wraps a
   // network delegate. Such a network delegate is thoroughly tested by