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### Issue Details

* **Electron Version:**
  * 11.0.0-beta.13
  * 10.0.1
* **Operating System:**
  * Windows 10 (2004)

When calling [`navigator.clipboard.read()`](https://developer.mozilla.org/en-US/docs/Web/API/Clipboard/read) in the renderer process, the session's permission handler receives a request for the permission "unknown".

### Expected Behavior
The permission handler should receive a request for "clipboard-read" permission.

### Actual Behavior
The permission handler receives a request for "unknown" permission.

### To Reproduce
Electron Fiddler: https://gist.github.com/5046d997fb4648edd08ad8a2645e84a0

shell/common/gin_converters/content_converter.cc
#include "shell/common/gin_converters/content_converter.h"
#include <string>
#include <vector>
#include "content/public/browser/context_menu_params.h"
#include "content/public/browser/native_web_keyboard_event.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/untrustworthy_context_menu_params.h"
#include "shell/browser/api/electron_api_web_contents.h"
#include "shell/browser/web_contents_permission_helper.h"
#include "shell/common/gin_converters/blink_converter.h"
#include "shell/common/gin_converters/callback_converter.h"
#include "shell/common/gin_converters/gurl_converter.h"
#include "shell/common/gin_helper/dictionary.h"
#include "ui/events/keycodes/dom/keycode_converter.h"
#include "ui/events/keycodes/keyboard_code_conversion.h"
namespace {
void ExecuteCommand(content::WebContents* web_contents,
                    int action,
                    const content::CustomContextMenuContext& context) {
  web_contents->ExecuteCustomContextMenuCommand(action, context);
}
v8::Local<v8::Value> MenuToV8(v8::Isolate* isolate,
                              content::WebContents* web_contents,
                              const content::CustomContextMenuContext& context,
                              const std::vector<content::MenuItem>& menu);
v8::Local<v8::Value> MenuItemToV8(