[DevTools] Move main target/connection to TargetManager.

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

Index: third_party/WebKit/Source/devtools/front_end/sdk/SubTargetsManager.js
diff --git a/third_party/WebKit/Source/devtools/front_end/sdk/SubTargetsManager.js b/third_party/WebKit/Source/devtools/front_end/sdk/SubTargetsManager.js
index b0750a35c3a56ec8735a6f22f0e9e52b95a033cc..21cb315ff96ccd9fefd56ba7f8809b9c382de2cb 100644
--- a/third_party/WebKit/Source/devtools/front_end/sdk/SubTargetsManager.js
+++ b/third_party/WebKit/Source/devtools/front_end/sdk/SubTargetsManager.js
@@ -332,11 +332,11 @@ WebInspector.TargetInfo = function(payload)
     this.id = payload.targetId;
     this.url = payload.url;
     this.type = payload.type;
-    if (this.type !== "page" && this.type !== "iframe") {
-        this.title = WebInspector.UIString("Worker: %s", this.url);
-        this.canActivate = false;
-    } else {
+    this.canActivate = this.type === "page" || this.type === "iframe";
+    if (this.type === "node")
+        this.title = WebInspector.UIString("Node: %s", this.url);
+    else if (this.type === "page" || this.type === "iframe")
         this.title = payload.title;
-        this.canActivate = true;
-    }
+    else
+        this.title = WebInspector.UIString("Worker: %s", this.url);
 };