Ensure tests have an active task runner

components/data_reduction_proxy/core/browser/data_reduction_proxy_interceptor_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_interceptor.h"
 
 #include <string>
 #include <vector>
 
 #include "base/files/file_path.h"
@@ skipping 113 matching lines @@
     // URLRequestJobs may post clean-up tasks on destruction.
     base::RunLoop().RunUntilIdle();
   }
 
   void Init(scoped_ptr<net::URLRequestJobFactory> factory) {
     job_factory_ = factory.Pass();
     default_context_->set_job_factory(job_factory_.get());
     default_context_->Init();
   }
 
+  base::MessageLoopForIO message_loop_;
   scoped_ptr<DataReductionProxyTestContext> test_context_;
   net::TestNetworkDelegate default_network_delegate_;
   scoped_ptr<net::URLRequestJobFactory> job_factory_;
   scoped_ptr<net::TestURLRequestContext> default_context_;
 };
 
 TEST_F(DataReductionProxyInterceptorTest, TestJobFactoryChaining) {
   // Verifies that job factories can be chained.
   scoped_ptr<net::URLRequestJobFactory> impl(
       new net::URLRequestJobFactoryImpl());
@@ skipping 84 matching lines @@
 
   const net::TestURLRequestContext& context() {
     return context_;
   }
 
   const net::test_server::EmbeddedTestServer& direct() {
     return direct_;
   }
 
  private:
+  base::MessageLoopForIO message_loop_;
   net::TestNetLog net_log_;
   net::TestNetworkDelegate network_delegate_;
   net::TestURLRequestContext context_;
   net::test_server::EmbeddedTestServer proxy_;
   net::test_server::EmbeddedTestServer direct_;
   scoped_ptr<net::ProxyService> proxy_service_;
   scoped_ptr<net::URLRequestJobFactory> job_factory_;
   scoped_ptr<DataReductionProxyTestContext> test_context_;
 };
 
@@ skipping 74 matching lines @@
 
   net::MockClientSocketFactory* mock_socket_factory() {
     return &mock_socket_factory_;
   }
 
   TestDataReductionProxyConfig* config() const {
     return drp_test_context_->config();
   }
 
  private:
+  base::MessageLoopForIO message_loop_;
   net::TestDelegate delegate_;
   net::MockClientSocketFactory mock_socket_factory_;
   net::TestURLRequestContext context_;
   net::URLRequestContextStorage context_storage_;
   scoped_ptr<DataReductionProxyTestContext> drp_test_context_;
 };
 
 const std::string kBody = "response body";
 
 TEST_F(DataReductionProxyInterceptorEndToEndTest, ResponseWithoutRetry) {
@@ skipping 130 matching lines @@
   EXPECT_FALSE(request->was_fetched_via_proxy());
 
   // Each of the redirects should have been intercepted before being followed.
   EXPECT_EQ(0, delegate().received_redirect_count());
   EXPECT_EQ(std::vector<GURL>(1, GURL("http://foo.com")), request->url_chain());
 }
 
 }  // namespace
 
 }  // namespace data_reduction_proxy