Move impl of identity.LaunchWebAuthFlow() extension API to its own file

chrome/browser/extensions/api/identity/identity_api.h

 // Copyright (c) 2012 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_EXTENSIONS_API_IDENTITY_IDENTITY_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_IDENTITY_IDENTITY_API_H_
 
 #include <map>
 #include <set>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/gtest_prod_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "build/build_config.h"
 #include "chrome/browser/extensions/api/identity/extension_token_key.h"
 #include "chrome/browser/extensions/api/identity/gaia_web_auth_flow.h"
+#include "chrome/browser/extensions/api/identity/identity_launch_web_auth_flow_function.h"
 #include "chrome/browser/extensions/api/identity/identity_mint_queue.h"
 #include "chrome/browser/extensions/api/identity/identity_signin_flow.h"
 #include "chrome/browser/extensions/api/identity/web_auth_flow.h"
 #include "chrome/browser/extensions/chrome_extension_function.h"
 #include "components/signin/core/browser/profile_identity_provider.h"
 #include "extensions/browser/browser_context_keyed_api_factory.h"
 #include "google_apis/gaia/account_tracker.h"
 #include "google_apis/gaia/oauth2_mint_token_flow.h"
 #include "google_apis/gaia/oauth2_token_service.h"
 
@@ skipping 293 matching lines @@
                              EXPERIMENTAL_IDENTITY_REMOVECACHEDAUTHTOKEN)
   IdentityRemoveCachedAuthTokenFunction();
 
  protected:
   ~IdentityRemoveCachedAuthTokenFunction() override;
 
   // ExtensionFunction:
   ResponseAction Run() override;
 };
 
-class IdentityLaunchWebAuthFlowFunction : public ChromeAsyncExtensionFunction,
-                                          public WebAuthFlow::Delegate {
- public:
-  DECLARE_EXTENSION_FUNCTION("identity.launchWebAuthFlow",
-                             EXPERIMENTAL_IDENTITY_LAUNCHWEBAUTHFLOW);
-
-  IdentityLaunchWebAuthFlowFunction();
-
-  // Tests may override extension_id.
-  void InitFinalRedirectURLPrefixForTest(const std::string& extension_id);
-
- private:
-  ~IdentityLaunchWebAuthFlowFunction() override;
-  bool RunAsync() override;
-
-  // WebAuthFlow::Delegate implementation.
-  void OnAuthFlowFailure(WebAuthFlow::Failure failure) override;
-  void OnAuthFlowURLChange(const GURL& redirect_url) override;
-  void OnAuthFlowTitleChange(const std::string& title) override {}
-
-  // Helper to initialize final URL prefix.
-  void InitFinalRedirectURLPrefix(const std::string& extension_id);
-
-  std::unique_ptr<WebAuthFlow> auth_flow_;
-  GURL final_url_prefix_;
-};
-
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_IDENTITY_IDENTITY_API_H_