Refactor OAuth2TokenService to have profile- and device-based implementations.

chrome/browser/signin/oauth2_token_service_test_util.cc

+// Copyright 2013 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 "chrome/browser/signin/oauth2_token_service_test_util.h"
+
+std::string GetValidTokenResponse(std::string token, int expiration) {
+  return base::StringPrintf(kValidTokenResponse, token.c_str(), expiration);
+}
+
+TestingOAuth2TokenServiceConsumer::TestingOAuth2TokenServiceConsumer()
+    : number_of_correct_tokens_(0),
+      last_error_(GoogleServiceAuthError::AuthErrorNone()),
+      number_of_errors_(0) {
+}
+
+TestingOAuth2TokenServiceConsumer::~TestingOAuth2TokenServiceConsumer() {
+}
+
+void TestingOAuth2TokenServiceConsumer::OnGetTokenSuccess(
+    const OAuth2TokenService::Request* request,
+    const std::string& token,
+    const base::Time& expiration_date) {
+  last_token_ = token;

[Andrew T Wilson (Slow), 2013/03/19 19:58:44]

consider just tracking tokens in a vector, that way tests can see all tokens and
just count the size of the vector.

+  ++number_of_correct_tokens_;
+}
+
+void TestingOAuth2TokenServiceConsumer::OnGetTokenFailure(
+    const OAuth2TokenService::Request* request,
+    const GoogleServiceAuthError& error) {
+  last_error_ = error;

[Andrew T Wilson (Slow), 2013/03/19 19:58:44]

consider tracking errors in a vector rather than counting num errors separately
and only tracking the last.

+  ++number_of_errors_;
+}