OAuth2 sign-in flow for ChromeOS

chrome/browser/signin/token_service.h

Index: chrome/browser/signin/token_service.h
diff --git a/chrome/browser/signin/token_service.h b/chrome/browser/signin/token_service.h
index 9903026a0df076a4e326bd8dc1643604402fa004..d1c9d682832664d3413948f1c8549d6e4a82ebfd 100644
--- a/chrome/browser/signin/token_service.h
+++ b/chrome/browser/signin/token_service.h
@@ -151,8 +151,8 @@ class TokenService : public GaiaAuthConsumer,
   // called.
   bool TokensLoadedFromDB() const;
 
-  // Returns true if the token service has all credentials needed to fetch
-  // tokens.
+  // Returns true if the token service has either GAIA credentials or OAuth2
+  // tokens needed to fetch other service tokens.
   virtual bool AreCredentialsValid() const;
 
   // Tokens will be fetched for all services(sync, talk) in the background.
@@ -167,6 +167,7 @@ class TokenService : public GaiaAuthConsumer,
   // Typical use is to create an OAuth2 token for appropriate scope and then
   // use that token to call a Google API.
   virtual bool HasOAuthLoginToken() const;
+  virtual bool HasOAuthLoginAccessToken() const;
   virtual const std::string& GetOAuth2LoginRefreshToken() const;
   const std::string& GetOAuth2LoginAccessToken() const;
 
@@ -190,6 +191,9 @@ class TokenService : public GaiaAuthConsumer,
       const WDTypedResult* result) OVERRIDE;
 
  protected:
+  // Saves OAuth2 credentials.
+  void SaveOAuth2Credentials(const ClientOAuthResult& result);
+
   void set_tokens_loaded(bool loaded) {
     tokens_loaded_ = loaded;
   }