Refactor AO2TS to make it easier to componentize.

chrome/browser/signin/fake_profile_oauth2_token_service.h

Index: chrome/browser/signin/fake_profile_oauth2_token_service.h
diff --git a/chrome/browser/signin/fake_profile_oauth2_token_service.h b/chrome/browser/signin/fake_profile_oauth2_token_service.h
index 9a5b97c82318da520cbc7da0473251f5440d3c48..63a5d7f2d840b0b1c9f5fd4233becebc2e70830e 100644
--- a/chrome/browser/signin/fake_profile_oauth2_token_service.h
+++ b/chrome/browser/signin/fake_profile_oauth2_token_service.h
@@ -58,32 +58,6 @@ class FakeProfileOAuth2TokenService
   FakeProfileOAuth2TokenService();
   ~FakeProfileOAuth2TokenService() override;
 
-  // Overriden to make sure it works on Android.
-  bool RefreshTokenIsAvailable(const std::string& account_id) const override;
-
-  // Overriden to make sure it works on iOS.
-  void LoadCredentials(const std::string& primary_account_id) override;
-
-  std::vector<std::string> GetAccounts() override;
-
-  // Overriden to make sure it works on Android.  Simply calls
-  // IssueRefreshToken().
-  void UpdateCredentials(const std::string& account_id,
-                         const std::string& refresh_token) override;
-
-  // Sets the current refresh token. If |token| is non-empty, this will invoke
-  // OnRefreshTokenAvailable() on all Observers, otherwise this will invoke
-  // OnRefreshTokenRevoked().
-  void IssueRefreshToken(const std::string& token);
-
-  // TODO(fgorski,rogerta): Merge with UpdateCredentials when this class fully
-  // supports multiple accounts.
-  void IssueRefreshTokenForUser(const std::string& account_id,
-                                const std::string& token);
-
-  // Fire OnRefreshTokensLoaded on all observers.
-  void IssueAllRefreshTokensLoaded();
-
   // Gets a list of active requests (can be used by tests to validate that the
   // correct request has been issued).
   std::vector<PendingRequest> GetPendingRequests();
@@ -122,17 +96,10 @@ class FakeProfileOAuth2TokenService
                         const std::string& client_secret,
                         const ScopeSet& scopes) override;
 
-  OAuth2AccessTokenFetcher* CreateAccessTokenFetcher(
-      const std::string& account_id,
-      net::URLRequestContextGetter* getter,
-      OAuth2AccessTokenConsumer* consumer) override;
-
-  void InvalidateOAuth2Token(const std::string& account_id,
-                             const std::string& client_id,
-                             const ScopeSet& scopes,
-                             const std::string& access_token) override;
-
-  net::URLRequestContextGetter* GetRequestContext() override;
+  void InvalidateAccessTokenImpl(const std::string& account_id,
+                                 const std::string& client_id,
+                                 const ScopeSet& scopes,
+                                 const std::string& access_token) override;
 
  private:
   // Helper function to complete pending requests - if |all_scopes| is true,
@@ -147,13 +114,8 @@ class FakeProfileOAuth2TokenService
                         const std::string& access_token,
                         const base::Time& expiration);
 
-  std::string GetRefreshToken(const std::string& account_id) const;
-
   std::vector<PendingRequest> pending_requests_;
 
-  // Maps account ids to their refresh token strings.
-  std::map<std::string, std::string> refresh_tokens_;
-
   // If true, then this fake service will post responses to
   // |FetchOAuth2Token| on the current run loop. There is no need to call
   // |IssueTokenForScope| in this case.