New Profile metric for Auth Errors.

chrome/browser/signin/chrome_signin_client.h

 // 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_SIGNIN_CHROME_SIGNIN_CLIENT_H_
 #define CHROME_BROWSER_SIGNIN_CHROME_SIGNIN_CLIENT_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "components/signin/core/browser/signin_client.h"
@@ skipping 47 matching lines @@
       const GURL& url,
       const std::string& name,
       const net::CookieStore::CookieChangedCallback& callback) override;
   void OnSignedIn(const std::string& account_id,
                   const std::string& username,
                   const std::string& password) override;
   void PostSignedIn(const std::string& account_id,
                     const std::string& username,
                     const std::string& password) override;
 
+  // Overridden from SigninErrorController::Observer
+  void OnErrorChanged() override;

[noms (inactive), 2015/01/08 21:49:04]

nit: change to "SigninErrorController::Observer implemetation." to match the
other 2 overrides in the file.

[Mike Lerman, 2015/01/09 02:15:04]

Done.

+
  private:
   Profile* profile_;
 
   // See SetSigninProcess. Tracks the currently active signin process
   // by ID, if there is one.
   int signin_host_id_;
 
   // The RenderProcessHosts being observed.
   std::set<content::RenderProcessHost*> signin_hosts_observed_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeSigninClient);
 };
 
 #endif  // CHROME_BROWSER_SIGNIN_CHROME_SIGNIN_CLIENT_H_