On Linux, move the passing of filedescriptors to a dedicated socketpair().

chrome/tools/test/reference_build/chrome_linux/resources/inspector/Breakpoint.js

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 11 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 WebInspector.Breakpoint = function(url, line, sourceID)
 {
     this.url = url;
     this.line = line;
     this.sourceID = sourceID;
     this._enabled = true;
+    this._sourceText = "";
 }
 
 WebInspector.Breakpoint.prototype = {
     get enabled()
     {
         return this._enabled;
     },
 
     set enabled(x)
     {
         if (this._enabled === x)
             return;
 
         this._enabled = x;
 
         if (this._enabled)
             this.dispatchEventToListeners("enabled");
         else
             this.dispatchEventToListeners("disabled");
+    },
+
+    get sourceText()
+    {
+        return this._sourceText;
+    },
+
+    set sourceText(text)
+    {
+        this._sourceText = text;
+        this.dispatchEventToListeners("text-changed");
+    },
+
+    get label()
+    {
+        var displayName = (this.url ? WebInspector.displayNameForURL(this.url) : WebInspector.UIString("(program)"));
+        return displayName + ":" + this.line;
+    },
+
+    get id()
+    {
+        return this.sourceID + ":" + this.line;
     }
 }
 
 WebInspector.Breakpoint.prototype.__proto__ = WebInspector.Object.prototype;