DevTools: allow handing over the raw protocol connection to external clients and back.

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

Index: third_party/WebKit/Source/devtools/front_end/sdk/TargetManager.js
diff --git a/third_party/WebKit/Source/devtools/front_end/sdk/TargetManager.js b/third_party/WebKit/Source/devtools/front_end/sdk/TargetManager.js
index dddad910c9853e3c77d4a7ee2691c9590eeba824..39c039703e2b9a2a135a39253a766bcf76e65f74 100644
--- a/third_party/WebKit/Source/devtools/front_end/sdk/TargetManager.js
+++ b/third_party/WebKit/Source/devtools/front_end/sdk/TargetManager.js
@@ -308,6 +308,14 @@ WebInspector.TargetManager.prototype = {
         }
     },
 
+    removeAllTargets: function()
+    {
+        var targets = this._targets.slice();
+        for (var i = targets.length - 1; i >=0 ; --i)
+            this.removeTarget(targets[i]);
+        this._targets = [];
+    },
+
     /**
      * @param {number=} capabilitiesMask
      * @return {!Array.<!WebInspector.Target>}