Permissions: Move common logic from DecidePermission to RequestPermission

chrome/browser/storage/durable_storage_permission_context.h

 // Copyright 2015 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_STORAGE_DURABLE_STORAGE_PERMISSION_CONTEXT_H_
 #define CHROME_BROWSER_STORAGE_DURABLE_STORAGE_PERMISSION_CONTEXT_H_
 
 #include <vector>
 
 #include "chrome/browser/permissions/permission_context_base.h"
 #include "components/bookmarks/browser/bookmark_model.h"
 
 class DurableStoragePermissionContext : public PermissionContextBase {
  public:
   explicit DurableStoragePermissionContext(Profile* profile);
   ~DurableStoragePermissionContext() override = default;
 
+  // PermissionContextBase implementation.
   // Grant if requesting_origin is bookmarked or already granted.
   void DecidePermission(content::WebContents* web_contents,
                         const PermissionRequestID& id,
                         const GURL& requesting_origin,
                         const GURL& embedding_origin,
                         bool user_gesture,
                         const BrowserPermissionCallback& callback) override;
-
   void UpdateContentSetting(const GURL& requesting_origin,
                             const GURL& embedding_origin,
                             ContentSetting content_setting) override;
-
   bool IsRestrictedToSecureOrigins() const override;
 
  private:
   FRIEND_TEST_ALL_PREFIXES(BookmarksOriginTest, Exists);
   FRIEND_TEST_ALL_PREFIXES(BookmarksOriginTest, DoesntExist);
 
   static bool IsOriginBookmarked(
       const std::vector<bookmarks::BookmarkModel::URLAndTitle>& bookmarks,
       const GURL& origin);
 
   DISALLOW_COPY_AND_ASSIGN(DurableStoragePermissionContext);
 };
 
 #endif  // CHROME_BROWSER_STORAGE_DURABLE_STORAGE_PERMISSION_CONTEXT_H_