[DevTools] Console should wait for the main target

third_party/WebKit/Source/devtools/front_end/console/ConsoleView.js

Index: third_party/WebKit/Source/devtools/front_end/console/ConsoleView.js
diff --git a/third_party/WebKit/Source/devtools/front_end/console/ConsoleView.js b/third_party/WebKit/Source/devtools/front_end/console/ConsoleView.js
index e435228680f86067dc7938fe70f8fe0855754dd6..8a805c498ce068f10871936262228ea2deae4275 100644
--- a/third_party/WebKit/Source/devtools/front_end/console/ConsoleView.js
+++ b/third_party/WebKit/Source/devtools/front_end/console/ConsoleView.js
@@ -168,8 +168,6 @@ Console.ConsoleView = class extends UI.VBox {
     this._registerWithMessageSink();
     SDK.targetManager.observeTargets(this);
 
-    this._initConsoleMessages();
-
     UI.context.addFlavorChangeListener(SDK.ExecutionContext, this._executionContextChanged, this);
 
     this._messagesElement.addEventListener('mousedown', this._updateStickToBottomOnMouseDown.bind(this), false);
@@ -287,6 +285,8 @@ Console.ConsoleView = class extends UI.VBox {
    * @param {!SDK.Target} target
    */
   targetAdded(target) {
+    if (target === SDK.targetManager.mainTarget())
+      this._initConsoleMessages();
     this._viewport.invalidate();
   }