Revert "Added page to Observatory to display native memory allocation information."

runtime/observatory/tests/service/get_native_allocation_samples_test.dart

-// Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--error_on_bad_type --error_on_bad_override
-
-import 'dart:developer';
-import 'package:observatory/models.dart' as M;
-import 'package:observatory/service_io.dart';
-import 'package:observatory/cpu_profile.dart';
-import 'package:unittest/unittest.dart';
-import 'service_test_common.dart';
-import 'test_helper.dart';
-
-void verifyHelper(var root, bool exclusive) {
-  if (root.children.length == 0) {
-    return;
-  }
-
-/*  if (!(root is FunctionCallTreeNode)) {
-    print('${root.profileCode.code.name}');
-  } else {
-    print('${root.profileFunction.function.name}');
-  }
-*/
-  int inclusiveAllocations = 0;
-  int exclusiveAllocations = 0;
-
-  for (int i = 0; i < root.children.length; i++) {
-    inclusiveAllocations += root.children[i].inclusiveNativeAllocations;
-    exclusiveAllocations += root.children[i].exclusiveNativeAllocations;
-  }
-
-  int rootMemory;
-  if (exclusive) {
-    rootMemory = root.inclusiveNativeAllocations + exclusiveAllocations;
-  } else {
-    rootMemory =
-        root.inclusiveNativeAllocations - root.exclusiveNativeAllocations;
-  }
-
-  expect(inclusiveAllocations == rootMemory, isTrue);
-  for (int i = 0; i < root.children.length; i++) {
-    verifyHelper(root.children[i], exclusive);
-  }
-}
-
-void verify(var tree, bool exclusive) {
-  var node = tree.root;
-  expect(node, isNotNull);
-  expect(node.children.length >= 0, isTrue);
-
-  for (int i = 0; i < node.children.length; i++) {
-    verifyHelper(node.children[i], exclusive);
-  }
-}
-
-var tests = [
-  // Verify inclusive tries.
-  (VM vm) async {
-    var response =
-        await vm.invokeRpc('_getNativeAllocationSamples', {'tags': 'None'});
-    CpuProfile cpuProfile = new CpuProfile();
-    await cpuProfile.load(vm, response);
-    var codeTree = cpuProfile.loadCodeTree(M.ProfileTreeDirection.inclusive);
-    var functionTree =
-        cpuProfile.loadFunctionTree(M.ProfileTreeDirection.inclusive);
-    verify(codeTree, false);
-    verify(functionTree, false);
-  },
-  // Verify exclusive tries.
-  (VM vm) async {
-    var response =
-        await vm.invokeRpc('_getNativeAllocationSamples', {'tags': 'None'});
-    CpuProfile cpuProfile = new CpuProfile();
-    await cpuProfile.load(vm, response);
-    var codeTreeExclusive =
-        cpuProfile.loadCodeTree(M.ProfileTreeDirection.exclusive);
-    var functionTreeExclusive =
-        cpuProfile.loadFunctionTree(M.ProfileTreeDirection.exclusive);
-    verify(codeTreeExclusive, true);
-    verify(functionTreeExclusive, true);
-  }
-];
-
-main(args) async => runVMTests(args, tests);