[DevTools] Do not expose agents on Target

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

Index: third_party/WebKit/Source/devtools/front_end/sdk/LogModel.js
diff --git a/third_party/WebKit/Source/devtools/front_end/sdk/LogModel.js b/third_party/WebKit/Source/devtools/front_end/sdk/LogModel.js
index dd9ec8c28f8318c861039c67694ab83191752b7e..fd9a7a0c8b497a303bdbc7c52488bc75c0d6b3be 100644
--- a/third_party/WebKit/Source/devtools/front_end/sdk/LogModel.js
+++ b/third_party/WebKit/Source/devtools/front_end/sdk/LogModel.js
@@ -8,11 +8,12 @@
 SDK.LogModel = class extends SDK.SDKModel {
   /**
    * @param {!SDK.Target} target
+   * @param {!Protocol.Dispatcher} dispatcher
    */
-  constructor(target) {
-    super(target);
-    target.registerLogDispatcher(this);
-    this._logAgent = target.logAgent();
+  constructor(target, dispatcher) {
+    super(target, dispatcher);
+    dispatcher.registerLogDispatcher(this);
+    this._logAgent = dispatcher.logAgent();
     this._logAgent.enable();
     if (!Host.isUnderTest()) {
       this._logAgent.startViolationsReport([