Change google_api::RequestSender to take an AuthService instead of a Profile.

chrome/browser/google_apis/auth_service_interface.h

Index: chrome/browser/google_apis/auth_service_interface.h
diff --git a/chrome/browser/google_apis/auth_service_interface.h b/chrome/browser/google_apis/auth_service_interface.h
index e8c239517ed2d091ff0398a3fa693204de79409c..faf9659916d8275d73be6dd67c81a2b0c44b309c 100644
--- a/chrome/browser/google_apis/auth_service_interface.h
+++ b/chrome/browser/google_apis/auth_service_interface.h
@@ -26,15 +26,13 @@ typedef base::Callback<void(GDataErrorCode error,
 // All functions must be called on UI thread.
 class AuthServiceInterface {
  public:
+  virtual ~AuthServiceInterface() {}
+
   // Adds and removes the observer. AddObserver() should be called before
   // Initialize() as it can change the refresh token.
   virtual void AddObserver(AuthServiceObserver* observer) = 0;
   virtual void RemoveObserver(AuthServiceObserver* observer) = 0;
 
-  // Initializes the auth service. Starts TokenService to retrieve the
-  // refresh token.
-  virtual void Initialize(Profile* profile) = 0;
-
   // Starts fetching OAuth2 access token from the refresh token.
   // |callback| must not be null.
   virtual void StartAuthentication(const AuthStatusCallback& callback) = 0;