Use FrameTreeNode ID as frameId in extension APIs

extensions/browser/api/web_request/web_request_api_constants.cc

 // 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.
 
 #include "extensions/browser/api/web_request/web_request_api_constants.h"
 
 namespace extension_web_request_api_constants {
 
 const char kChallengerKey[] = "challenger";
 const char kErrorKey[] = "error";
 const char kFrameIdKey[] = "frameId";
 const char kParentFrameIdKey[] = "parentFrameId";
+const char kProcessIdKey[] = "processId";
 const char kFromCache[] = "fromCache";
 const char kHostKey[] = "host";
 const char kIpKey[] = "ip";
 const char kPortKey[] = "port";
 const char kMethodKey[] = "method";
 const char kRedirectUrlKey[] = "redirectUrl";
 const char kRequestIdKey[] = "requestId";
 const char kStatusCodeKey[] = "statusCode";
 const char kStatusLineKey[] = "statusLine";
 const char kTabIdKey[] = "tabId";
@@ skipping 49 matching lines @@
 const char kHostPermissionsRequired[] =
     "You need to request host permissions in the manifest file in order to "
     "be notified about requests from the webRequest API.";
 const char kInvalidHeaderKeyCombination[] =
     "requestHeaders and responseHeaders cannot both be present.";
 const char kInvalidHeader[] = "Invalid header specification '*'.";
 const char kInvalidHeaderName[] = "Invalid header name.";
 const char kInvalidHeaderValue[] = "Header '*' has an invalid value.";
 
 }  // namespace extension_web_request_api_constants