Removing chrome.pushMessaging API

chrome/common/extensions/permissions/chrome_api_permissions.cc

 // Copyright (c) 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/common/extensions/permissions/chrome_api_permissions.h"
 
 #include "chrome/grit/generated_resources.h"
 #include "extensions/common/permissions/api_permission.h"
 #include "extensions/common/permissions/api_permission_set.h"
 #include "extensions/common/permissions/media_galleries_permission.h"
@@ skipping 378 matching lines @@
       // vary based on the permissions parameters, no message ID or
       // message text is specified here.  The message ID and text used
       // will be determined at run-time in the
       // |MediaGalleriesPermission| class.
       {APIPermission::kMediaGalleries,
        "mediaGalleries",
        APIPermissionInfo::kFlagNone,
        0,
        PermissionMessage::kNone,
        &CreateAPIPermission<MediaGalleriesPermission>},
-      {APIPermission::kPushMessaging,
-       "pushMessaging",
-       APIPermissionInfo::kFlagCannotBeOptional},
       {APIPermission::kPointerLock, "pointerLock"},
       {APIPermission::kCastStreaming, "cast.streaming"},
       {APIPermission::kBrowser, "browser"},
       {APIPermission::kInterceptAllKeys,
        "app.window.interceptAllKeys",
        APIPermissionInfo::kFlagNone,
        IDS_EXTENSION_PROMPT_WARNING_INTERCEPT_ALL_KEYS,
        PermissionMessage::kInterceptAllKeys},
 
       // Settings override permissions.
@@ skipping 26 matching lines @@
 
 std::vector<PermissionsProvider::AliasInfo>
 ChromeAPIPermissions::GetAllAliases() const {
   // Register aliases.
   std::vector<PermissionsProvider::AliasInfo> aliases;
   aliases.push_back(PermissionsProvider::AliasInfo("tabs", kWindowsPermission));
   return aliases;
 }
 
 }  // namespace extensions