Moving oauth code from host to base to allow code sharing between host and client.

remoting/base/oauth_client.h

 // Copyright 2013 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 REMOTING_HOST_SETUP_OAUTH_CLIENT_H_
-#define REMOTING_HOST_SETUP_OAUTH_CLIENT_H_
+#ifndef REMOTING_BASE_OAUTH_CLIENT_H_
+#define REMOTING_BASE_OAUTH_CLIENT_H_
 
 #include <string>
 
 #include "base/callback.h"
 
 namespace gaia {
 struct OAuthClientInfo;
 }
 
 namespace remoting {
 
 class OAuthClient {
  public:
   // Called when GetCredentialsFromAuthCode is completed, with the |user_email|
   // and |refresh_token| that correspond to the given |auth_code|, or with empty
   // strings on error.
-  typedef base::Callback<void(
-      const std::string& user_email,
-      const std::string& refresh_token)> CompletionCallback;
+  typedef base::Callback<void(const std::string& user_email,

[nicholss, 2017/01/31 16:44:58]

git cl format did these changes.

+                              const std::string& refresh_token)>
+      CompletionCallback;
 
   virtual ~OAuthClient() {}
 
   // Redeems |auth_code| using |oauth_client_info| to obtain
   // |refresh_token| and |access_token|, then, if |need_user_email| is
   // true, uses the userinfo endpoint to obtain |user_email|.  Calls
   // CompletionCallback with |user_email| and |refresh_token| when
   // done, or with empty strings on error.  If a request is received
   // while another one is being processed, it is enqueued and
   // processed after the first one is finished.
   virtual void GetCredentialsFromAuthCode(
       const gaia::OAuthClientInfo& oauth_client_info,
       const std::string& auth_code,
       bool need_user_email,
       CompletionCallback on_done) = 0;
 };
 
 }  // namespace remoting
 
-#endif  // REMOTING_HOST_SETUP_OAUTH_CLIENT_H_
+#endif  // REMOTING_BASE_OAUTH_CLIENT_H_