[inspector] console get all information from inspector when needed

test/inspector/runtime/console-memory.js

+// Copyright 2017 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+InspectorTest.log('Checks console.memory');
+
+InspectorTest.runAsyncTestSuite([
+  async function testWithoutMemory() {
+    InspectorTest.logMessage(
+      await Protocol.Runtime.evaluate({expression: 'console.memory'}));
+  },
+
+  async function testSetterInStrictMode() {
+    // crbug.com/468611
+    InspectorTest.logMessage(
+      await Protocol.Runtime.evaluate({
+        expression: '"use strict"\nconsole.memory = {};undefined' }));
+  },
+
+  async function testWithMemory() {
+    utils.setMemoryInfoForTest(239);
+    InspectorTest.logMessage(
+      await Protocol.Runtime.evaluate({expression: 'console.memory'}));
+  },
+
+  async function testSetterDoesntOverride() {
+    utils.setMemoryInfoForTest(42);
+    await Protocol.Runtime.evaluate({expression: 'console.memory = 0'});
+    InspectorTest.logMessage(
+      await Protocol.Runtime.evaluate({expression: 'console.memory'}));
+  }
+]);