[Extensions] Migrate ExtensionInstallPrompt::Delegate to be a callback

chrome/browser/extensions/api/webstore_private/webstore_private_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_WEBSTORE_PRIVATE_WEBSTORE_PRIVATE_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_WEBSTORE_PRIVATE_WEBSTORE_PRIVATE_API_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 28 matching lines @@
 
   // Gets the pending approval for the |extension_id| in |profile|. Pending
   // approvals are held between the calls to beginInstallWithManifest and
   // completeInstall. This should only be used for testing.
   static scoped_ptr<WebstoreInstaller::Approval> PopApprovalForTesting(
       Profile* profile, const std::string& extension_id);
 };
 
 class WebstorePrivateBeginInstallWithManifest3Function
     : public UIThreadExtensionFunction,
-      public ExtensionInstallPrompt::Delegate,
       public WebstoreInstallHelper::Delegate {
  public:
   DECLARE_EXTENSION_FUNCTION("webstorePrivate.beginInstallWithManifest3",
                              WEBSTOREPRIVATE_BEGININSTALLWITHMANIFEST3)
 
   WebstorePrivateBeginInstallWithManifest3Function();
 
  private:
   using Params = api::webstore_private::BeginInstallWithManifest3::Params;
 
   ~WebstorePrivateBeginInstallWithManifest3Function() override;
 
   // ExtensionFunction:
   ExtensionFunction::ResponseAction Run() override;
 
   // WebstoreInstallHelper::Delegate:
   void OnWebstoreParseSuccess(const std::string& id,
                               const SkBitmap& icon,
                               base::DictionaryValue* parsed_manifest) override;
   void OnWebstoreParseFailure(const std::string& id,
                               InstallHelperResultCode result,
                               const std::string& error_message) override;
 
-  // ExtensionInstallPrompt::Delegate:
-  void InstallUIProceed() override;
-  void InstallUIAbort(bool user_initiated) override;
+  void OnInstallPromptDone(ExtensionInstallPrompt::Result result);
+
+  void HandleInstallProceed();
+  void HandleInstallAbort(bool user_initiated);
 
   ExtensionFunction::ResponseValue BuildResponse(
       api::webstore_private::Result result,
       const std::string& error);
   scoped_ptr<base::ListValue> CreateResults(
       api::webstore_private::Result result) const;
 
   const Params::Details& details() const { return params_->details; }
 
   ChromeExtensionFunctionDetails chrome_details_;
@@ skipping 231 matching lines @@
  private:
   ~WebstorePrivateGetEphemeralAppsEnabledFunction() override;
 
   // ExtensionFunction:
   ExtensionFunction::ResponseAction Run() override;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_WEBSTORE_PRIVATE_WEBSTORE_PRIVATE_API_H_