Revert 164120 - content/browser: Move more files into the content namespace.

content/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 "content/browser/mach_broker_mac.h"
 
 #include "base/synchronization/lock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-namespace content {
-
 class MachBrokerTest : public testing::Test {
  public:
   // Helper function to acquire/release locks and call |PlaceholderForPid()|.
   void AddPlaceholderForPid(base::ProcessHandle pid) {
     base::AutoLock lock(broker_.GetLock());
     broker_.AddPlaceholderForPid(pid);
   }
 
   // Helper function to acquire/release locks and call |FinalizePid()|.
   void FinalizePid(base::ProcessHandle pid,
@@ skipping 31 matching lines @@
   EXPECT_EQ(100u, broker_.TaskForPid(1));
   broker_.InvalidatePid(1u);
   EXPECT_EQ(0u, broker_.TaskForPid(1));
 }
 
 TEST_F(MachBrokerTest, FinalizeUnknownPid) {
   // Finalizing an entry for an unknown pid should not add it to the map.
   FinalizePid(1u, MachBroker::MachInfo().SetTask(100u));
   EXPECT_EQ(0u, broker_.TaskForPid(1u));
 }
-
-}  // namespace content