media: Remove extension code in ProtectedMediaIdentifierPermissionContext.

chrome/browser/media/protected_media_identifier_permission_context.cc

 // Copyright 2013 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.
 
 #include "chrome/browser/media/protected_media_identifier_permission_context.h"
 
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/pref_names.h"
 #include "components/content_settings/core/common/permission_request_id.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/web_contents.h"
 
-#if defined(ENABLE_EXTENSIONS)
-#include "chrome/browser/extensions/extension_service.h"
-#include "extensions/browser/extension_system.h"
-#include "extensions/browser/suggest_permission_util.h"
-#include "extensions/browser/view_type_utils.h"
-#include "extensions/common/extension.h"
-
-using extensions::APIPermission;
-#endif
-
 ProtectedMediaIdentifierPermissionContext::
     ProtectedMediaIdentifierPermissionContext(Profile* profile)
     : PermissionContextBase(profile,
                             CONTENT_SETTINGS_TYPE_PROTECTED_MEDIA_IDENTIFIER) {
 }
 
 ProtectedMediaIdentifierPermissionContext::
     ~ProtectedMediaIdentifierPermissionContext() {
 }
 
 void ProtectedMediaIdentifierPermissionContext::RequestPermission(
     content::WebContents* web_contents,
     const PermissionRequestID& id,
     const GURL& requesting_frame_origin,
     bool user_gesture,
     const BrowserPermissionCallback& callback) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 
-#if defined(ENABLE_EXTENSIONS)
-  if (extensions::GetViewType(web_contents) !=
-      extensions::VIEW_TYPE_TAB_CONTENTS) {
-    // The tab may have gone away, or the request may not be from a tab at all.
-    DVLOG(1)
-        << "Attempt to use protected media identifier in tabless renderer: "
-        << id.ToString()
-        << " (can't prompt user without a visible tab)";
-    NotifyPermissionSet(id, requesting_frame_origin,
-                        web_contents->GetLastCommittedURL().GetOrigin(),
-                        callback, false, false);
-    return;
-  }
-#endif
-
 #if defined(OS_ANDROID)
   // Check if the protected media identifier master switch is disabled.
   if (!profile()->GetPrefs()->GetBoolean(
         prefs::kProtectedMediaIdentifierEnabled)) {
     NotifyPermissionSet(id,
                         requesting_frame_origin,
                         web_contents->GetLastCommittedURL().GetOrigin(),
                         callback, false, false);
     return;
   }
@@ skipping 14 matching lines @@
   // WebContents may have gone away.
   TabSpecificContentSettings* content_settings =
       TabSpecificContentSettings::Get(id.render_process_id(),
                                       id.render_view_id());
   if (content_settings) {
     content_settings->OnProtectedMediaIdentifierPermissionSet(
         requesting_frame.GetOrigin(), allowed);
   }
 
 }