Mac: Create a pid->task_t mapping in the browser process.

chrome/browser/mach_broker_mac_unittest.cc

+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/mach_broker_mac.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+class MachBrokerTest : public testing::Test {
+ public:
+  MachBroker broker_;
+};
+
+TEST_F(MachBrokerTest, Setter) {
+  broker_.RegisterPid(1u, MachBroker::MachInfo().SetTask(2u));
+  EXPECT_EQ(2u, broker_.TaskForPid(1));
+  EXPECT_EQ(0u, broker_.TaskForPid(2));
+}
+
+TEST_F(MachBrokerTest, Invalidate) {
+  broker_.RegisterPid(1u, MachBroker::MachInfo().SetTask(2));
+  broker_.Invalidate(1u);
+  EXPECT_EQ(0u, broker_.TaskForPid(1));
+}