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

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

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 68 matching lines @@
  * @param {number} opt_stackPos If an unknown address is encountered
  *     during stack strace processing, specifies a position of the frame
  *     containing the address.
  */
 devtools.profiler.Profile.prototype.handleUnknownCode = function(
     operation, addr, opt_stackPos) {
 };
 
 
 /**
- * Registers static (library) code entry.
+ * Registers a library.
  *
  * @param {string} name Code entry name.
  * @param {number} startAddr Starting address.
+ * @param {number} endAddr Ending address.
+ */
+devtools.profiler.Profile.prototype.addLibrary = function(
+    name, startAddr, endAddr) {
+  var entry = new devtools.profiler.CodeMap.CodeEntry(
+      endAddr - startAddr, name);
+  this.codeMap_.addLibrary(startAddr, entry);
+  return entry;
+};
+
+
+/**
+ * Registers statically compiled code entry.
+ *
+ * @param {string} name Code entry name.
+ * @param {number} startAddr Starting address.
  * @param {number} endAddr Ending address.
  */
 devtools.profiler.Profile.prototype.addStaticCode = function(
     name, startAddr, endAddr) {
   var entry = new devtools.profiler.CodeMap.CodeEntry(
       endAddr - startAddr, name);
   this.codeMap_.addStaticCode(startAddr, entry);
   return entry;
 };
 
@@ skipping 493 matching lines @@
     labels, opt_f) {
   for (var pos = 0, curr = this; pos < labels.length && curr != null; pos++) {
     var child = curr.findChild(labels[pos]);
     if (opt_f) {
       opt_f(child, pos);
     }
     curr = child;
   }
   return curr;
 };