Add HttpProtocolHandler and convert everything to use it

components/data_reduction_proxy/core/browser/data_reduction_proxy_bypass_stats_unittest.cc

Index: components/data_reduction_proxy/core/browser/data_reduction_proxy_bypass_stats_unittest.cc
diff --git a/components/data_reduction_proxy/core/browser/data_reduction_proxy_bypass_stats_unittest.cc b/components/data_reduction_proxy/core/browser/data_reduction_proxy_bypass_stats_unittest.cc
index 3b33674e630f666b173c6b4effd8c8ef387d1140..b5e0ab4224452d7113c9b24d33a1ccaff9849b35 100644
--- a/components/data_reduction_proxy/core/browser/data_reduction_proxy_bypass_stats_unittest.cc
+++ b/components/data_reduction_proxy/core/browser/data_reduction_proxy_bypass_stats_unittest.cc
@@ -65,15 +65,18 @@ const std::string kErrorBody = "bad";
 
 class DataReductionProxyBypassStatsTest : public testing::Test {
  public:
-  DataReductionProxyBypassStatsTest() : context_(true) {
+  DataReductionProxyBypassStatsTest()
+      : context_(true),
+        test_job_factory_(
+            net::URLRequestJobFactoryImpl::CreateWithHttpProtocolHandlers()) {
     context_.Init();
 
     // The |test_job_factory_| takes ownership of the interceptor.
     test_job_interceptor_ = new net::TestJobInterceptor();
-    EXPECT_TRUE(test_job_factory_.SetProtocolHandler(
-        url::kHttpScheme, base::WrapUnique(test_job_interceptor_)));
+    test_job_factory_.reset(new net::URLRequestInterceptingJobFactory(
+        std::move(test_job_factory_), base::WrapUnique(test_job_interceptor_)));
 
-    context_.set_job_factory(&test_job_factory_);
+    context_.set_job_factory(test_job_factory_.get());
 
     test_context_ =
         DataReductionProxyTestContext::Builder().WithMockConfig().Build();
@@ -130,7 +133,7 @@ class DataReductionProxyBypassStatsTest : public testing::Test {
   std::unique_ptr<net::URLRequest> mock_url_request_;
   // |test_job_interceptor_| is owned by |test_job_factory_|.
   net::TestJobInterceptor* test_job_interceptor_;
-  net::URLRequestJobFactoryImpl test_job_factory_;
+  std::unique_ptr<net::URLRequestJobFactory> test_job_factory_;
   std::unique_ptr<DataReductionProxyTestContext> test_context_;
 };