Refactor CryptAuth component to be more testable.

components/proximity_auth/cryptauth/cryptauth_api_call_flow_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/proximity_auth/cryptauth/cryptauth_api_call_flow.h"
 
 #include "base/test/test_simple_task_runner.h"
 #include "net/url_request/test_url_fetcher_factory.h"
 #include "net/url_request/url_request_test_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace proximity_auth {
 
 namespace {
 
 const char kSerializedRequestProto[] = "serialized_request_proto";
 const char kSerializedResponseProto[] = "result_proto";
 const char kRequestUrl[] = "https://googleapis.com/cryptauth/test";
 
 }  // namespace
 
 class ProximityAuthCryptAuthApiCallFlowTest
     : public testing::Test,
       public net::TestURLFetcherDelegateForTests {
  protected:
   ProximityAuthCryptAuthApiCallFlowTest()
       : url_request_context_getter_(new net::TestURLRequestContextGetter(
-            new base::TestSimpleTaskRunner())),
-        flow_(GURL(kRequestUrl)) {}
+            new base::TestSimpleTaskRunner())) {}
 
   void SetUp() override {
     // The TestURLFetcherFactory will override the global URLFetcherFactory for
     // the entire test.
     url_fetcher_factory_.reset(new net::TestURLFetcherFactory());
     url_fetcher_factory_->SetDelegateForTests(this);
   }
 
   void StartApiCallFlow() {
-    flow_.Start(url_request_context_getter_.get(),
-                "access_token",
-                kSerializedRequestProto,
+    flow_.Start(GURL(kRequestUrl), url_request_context_getter_.get(),
+                "access_token", kSerializedRequestProto,
                 base::Bind(&ProximityAuthCryptAuthApiCallFlowTest::OnResult,
                            base::Unretained(this)),
                 base::Bind(&ProximityAuthCryptAuthApiCallFlowTest::OnError,
                            base::Unretained(this)));
     // URLFetcher object for the API request should be created.
     CheckCryptAuthHttpRequest();
   }
 
   void OnResult(const std::string& result) {
     EXPECT_FALSE(result_);
@@ skipping 81 matching lines @@
 // The empty string is a valid protocol buffer message serialization.
 TEST_F(ProximityAuthCryptAuthApiCallFlowTest, ResponseWithNoBody) {
   StartApiCallFlow();
   CompleteCurrentRequest(
       net::URLRequestStatus::SUCCESS, net::HTTP_OK, std::string());
   EXPECT_EQ(std::string(), *result_);
   EXPECT_FALSE(error_message_);
 }
 
 }  // namespace proximity_auth