Added ProfileView object for performing sorting, searching and filtering operations on a profile.

test/mjsunit/tools/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 252 matching lines @@
   };
 
   var testDriver = new Driver();
   testDriver.execute();
 
   var counted = 0;
   for (var c in testDriver.counters) {
     counted++;
   }
 
-  var flatProfile = testDriver.profile.getFlatProfile();
+  var flatProfile =
+      testDriver.profile.getFlatProfile().getRoot().exportChildren();
   assertEquals(counted, flatProfile.length, 'counted vs. flatProfile');
   for (var i = 0; i < flatProfile.length; ++i) {
     var rec = flatProfile[i];
     assertTrue(rec.label in testDriver.counters, 'uncounted: ' + rec.label);
     var reference = testDriver.counters[rec.label];
     assertEquals(reference.self, rec.selfWeight, 'self of ' + rec.label);
     assertEquals(reference.total, rec.totalWeight, 'total of ' + rec.label);
   }
 
 })();