[DevTools] Do not expose agents on Target

third_party/WebKit/Source/devtools/front_end/sdk/CookieModel.js

Index: third_party/WebKit/Source/devtools/front_end/sdk/CookieModel.js
diff --git a/third_party/WebKit/Source/devtools/front_end/sdk/CookieModel.js b/third_party/WebKit/Source/devtools/front_end/sdk/CookieModel.js
index d9d958dd714c20e1126d263c0aab5cc84eaeab01..eef47a23eeefe0cc36d4d971d05939cbd1af5d9c 100644
--- a/third_party/WebKit/Source/devtools/front_end/sdk/CookieModel.js
+++ b/third_party/WebKit/Source/devtools/front_end/sdk/CookieModel.js
@@ -5,9 +5,11 @@
 SDK.CookieModel = class extends SDK.SDKModel {
   /**
    * @param {!SDK.Target} target
+   * @param {!Protocol.Dispatcher} dispatcher
    */
-  constructor(target) {
-    super(target);
+  constructor(target, dispatcher) {
+    super(target, dispatcher);
+    this._networkAgent = dispatcher.networkAgent();
   }
 
   /**
@@ -62,7 +64,7 @@ SDK.CookieModel = class extends SDK.SDKModel {
    * @param {function(!Array<!SDK.Cookie>)} callback
    */
   getCookiesAsync(urls, callback) {
-    this.target().networkAgent().getCookies(urls, (err, cookies) => {
+    this._networkAgent.getCookies(urls, (err, cookies) => {
       if (err) {
         console.error(err);
         return callback([]);
@@ -99,7 +101,7 @@ SDK.CookieModel = class extends SDK.SDKModel {
     var expires = undefined;
     if (cookie.expires())
       expires = Math.floor(Date.parse(cookie.expires()) / 1000);
-    this.target().networkAgent().setCookie(
+    this._networkAgent.setCookie(
         cookie.url(), cookie.name(), cookie.value(), domain, cookie.path(), cookie.secure(), cookie.httpOnly(),
         cookie.sameSite(), expires, callback);
   }
@@ -129,7 +131,7 @@ SDK.CookieModel = class extends SDK.SDKModel {
    * @param {function()=} callback
    */
   _deleteAll(cookies, callback) {
-    var networkAgent = this.target().networkAgent();
+    var networkAgent = this._networkAgent;
     function deleteCookie(cookie) {
       return new Promise(resolve => networkAgent.deleteCookie(cookie.name(), cookie.url(), resolve));
     }