Add user name in the feedback data.

blimp/client/core/session/identity_source.h

 // Copyright 2016 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 BLIMP_CLIENT_CORE_SESSION_IDENTITY_SOURCE_H_
 #define BLIMP_CLIENT_CORE_SESSION_IDENTITY_SOURCE_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 18 matching lines @@
 
   explicit IdentitySource(std::unique_ptr<IdentityProvider> identity_provider,
                           const TokenErrorCallback& error_callback,
                           const TokenCallback& callback);
   ~IdentitySource() override;
 
   // Start Blimp authentication by requesting OAuth2 token from Google.
   // Duplicate connect calls during token fetching will be ignored.
   void Connect();
 
+  // Returns the account name for the current user.

[nyquist, 2016/11/08 20:58:59]

Could you explain what happens if the user is not signed in?

+  std::string GetActiveUsername();
+
   // Add sign in state observer.
   void AddObserver(IdentityProvider::Observer* observer);
 
   // Remove sign in state observer.
   void RemoveObserver(IdentityProvider::Observer* observer);
 
   // OAuth2TokenService::Consumer implementation.
   void OnGetTokenSuccess(const OAuth2TokenService::Request* request,
                          const std::string& access_token,
                          const base::Time& expiration_time) override;
@@ skipping 32 matching lines @@
   // Current retry count due to request cancellation.
   int retry_times_;
 
   DISALLOW_COPY_AND_ASSIGN(IdentitySource);
 };
 
 }  // namespace client
 }  // namespace blimp
 
 #endif  // BLIMP_CLIENT_CORE_SESSION_IDENTITY_SOURCE_H_