Convert //extensions/{common,shell} from scoped_ptr to std::unique_ptr

extensions/shell/browser/api/identity/identity_api.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 EXTENSIONS_SHELL_BROWSER_API_IDENTITY_IDENTITY_API_H_
 #define EXTENSIONS_SHELL_BROWSER_API_IDENTITY_IDENTITY_API_H_
 
 #include <string>
 
 #include "base/macros.h"
@@ skipping 56 matching lines @@
 
   // OAuth2MintTokenFlow::Delegate:
   void OnMintTokenSuccess(const std::string& access_token,
                           int time_to_live) override;
   void OnIssueAdviceSuccess(const IssueAdviceInfo& issue_advice) override;
   void OnMintTokenFailure(const GoogleServiceAuthError& error) override;
 
  private:
   // A pending token fetch request to get a login-scoped access token for the
   // current user for the Chrome project id.
-  scoped_ptr<OAuth2TokenService::Request> access_token_request_;
+  std::unique_ptr<OAuth2TokenService::Request> access_token_request_;
 
   // A request for an access token for the current app and its scopes.
-  scoped_ptr<OAuth2MintTokenFlow> mint_token_flow_;
+  std::unique_ptr<OAuth2MintTokenFlow> mint_token_flow_;
 
   DISALLOW_COPY_AND_ASSIGN(IdentityGetAuthTokenFunction);
 };
 
 // Stub. See the IDL file for documentation.
 class IdentityRemoveCachedAuthTokenFunction : public UIThreadExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("identity.removeCachedAuthToken", UNKNOWN)
 
   IdentityRemoveCachedAuthTokenFunction();
 
  protected:
   ~IdentityRemoveCachedAuthTokenFunction() override;
 
   // ExtensionFunction:
   ResponseAction Run() override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(IdentityRemoveCachedAuthTokenFunction);
 };
 
 }  // namespace shell
 }  // namespace extensions
 
 #endif  // EXTENSIONS_SHELL_BROWSER_API_IDENTITY_IDENTITY_API_H_