Add support for child accounts.

chrome/browser/supervised_user/child_accounts/family_info_fetcher.h

Index: chrome/browser/supervised_user/child_accounts/family_info_fetcher.h
diff --git a/chrome/browser/supervised_user/child_accounts/family_info_fetcher.h b/chrome/browser/supervised_user/child_accounts/family_info_fetcher.h
new file mode 100644
index 0000000000000000000000000000000000000000..1ad0ad24d77d054f0265f35954ae9890f461c387
--- /dev/null
+++ b/chrome/browser/supervised_user/child_accounts/family_info_fetcher.h
@@ -0,0 +1,132 @@
+// 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.
+
+#ifndef CHROME_BROWSER_SUPERVISED_USER_CHILD_ACCOUNTS_FAMILY_INFO_FETCHER_H_
+#define CHROME_BROWSER_SUPERVISED_USER_CHILD_ACCOUNTS_FAMILY_INFO_FETCHER_H_
+
+#include <string>
+#include <vector>
+
+#include "base/callback.h"
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+#include "google_apis/gaia/oauth2_token_service.h"
+#include "net/url_request/url_fetcher.h"
+#include "net/url_request/url_fetcher_delegate.h"
+
+namespace base {
+class DictionaryValue;
+class ListValue;
+class Time;
+}
+
+namespace net {
+class URLRequestContextGetter;
+}
+
+class FamilyInfoFetcher : public OAuth2TokenService::Observer,
+                          public OAuth2TokenService::Consumer,
+                          public net::URLFetcherDelegate {
+ public:
+  enum ErrorCode {
+    TOKEN_ERROR,    // Failed to get OAuth2 token.
+    NETWORK_ERROR,  // Network failure.
+    SERVICE_ERROR,  // Service returned an error or malformed reply.
+  };
+  enum FamilyMemberRole {
+    HEAD_OF_HOUSEHOLD = 0,
+    PARENT,
+    MEMBER,
+    CHILD
+  };
+  struct FamilyProfile {
+    FamilyProfile();
+    FamilyProfile(const std::string& id, const std::string& name);
+    ~FamilyProfile();
+    std::string id;
+    std::string name;
+  };
+  struct FamilyMember {
+    FamilyMember();
+    FamilyMember(const std::string& obfuscated_gaia_id,
+                 FamilyMemberRole role,
+                 const std::string& display_name,
+                 const std::string& email,
+                 const std::string& profile_url,
+                 const std::string& profile_image_url);
+    ~FamilyMember();
+    std::string obfuscated_gaia_id;
+    FamilyMemberRole role;
+    // All of the following may be empty.
+    std::string display_name;
+    std::string email;
+    std::string profile_url;
+    std::string profile_image_url;
+  };
+
+  class Consumer {
+   public:
+    virtual void OnGetFamilyProfileSuccess(const FamilyProfile& family) {}
+    virtual void OnGetFamilyMembersSuccess(
+        const std::vector<FamilyMember>& members) {}
+    virtual void OnFailure(ErrorCode error) {}
+  };
+
+  FamilyInfoFetcher(Consumer* consumer,
+                    const std::string& account_id,
+                    OAuth2TokenService* token_service,
+                    net::URLRequestContextGetter* request_context);
+  virtual ~FamilyInfoFetcher();
+
+  // Public so tests can use them.
+  static std::string RoleToString(FamilyMemberRole role);
+  static bool StringToRole(const std::string& str, FamilyMemberRole* role);
+
+  void StartGetFamilyProfile();
+  void StartGetFamilyMembers();
+
+ private:
+  // OAuth2TokenService::Observer implementation:
+  virtual void OnRefreshTokenAvailable(const std::string& account_id) override;
+  virtual void OnRefreshTokensLoaded() override;
+
+  // OAuth2TokenService::Consumer implementation:
+  virtual void OnGetTokenSuccess(const OAuth2TokenService::Request* request,
+                                 const std::string& access_token,
+                                 const base::Time& expiration_time) override;
+  virtual void OnGetTokenFailure(const OAuth2TokenService::Request* request,
+                                 const GoogleServiceAuthError& error) override;
+
+  // net::URLFetcherDelegate implementation.
+  virtual void OnURLFetchComplete(const net::URLFetcher* source) override;
+
+  static bool ParseMembers(const base::ListValue* list,
+                           std::vector<FamilyMember>* members);
+  static bool ParseMember(const base::DictionaryValue* dict,
+                          FamilyMember* member);
+  static void ParseProfile(const base::DictionaryValue* dict,
+                           FamilyMember* member);
+
+  void StartFetching();
+  void StartFetchingAccessToken();
+  void FamilyProfileFetched(const std::string& response);
+  void FamilyMembersFetched(const std::string& response);
+
+  Consumer* consumer_;
+  const std::string account_id_;
+  OAuth2TokenService* token_service_;
+  net::URLRequestContextGetter* request_context_;
+
+  std::string request_suffix_;
+  net::URLFetcher::RequestType request_type_;
+  scoped_ptr<OAuth2TokenService::Request> access_token_request_;
+  std::string access_token_;
+  bool access_token_expired_;
+  scoped_ptr<net::URLFetcher> url_fetcher_;
+
+  DISALLOW_COPY_AND_ASSIGN(FamilyInfoFetcher);
+};
+
+#endif  // CHROME_BROWSER_SUPERVISED_USER_CHILD_ACCOUNTS_FAMILY_INFO_FETCHER_H_
+