Move SandboxCompiler class into the sandbox library.

sandbox/mac/sandbox_mac_compiler_unittest.mm

 // Copyright 2015 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/common/sandbox_mac.h"
-
 #include <fcntl.h>
 #include <stdint.h>
 #include <sys/stat.h>
 #include <unistd.h>
 
 #include "base/process/kill.h"
 #include "base/test/multiprocess_test.h"
 #include "base/test/test_timeouts.h"
+#include "sandbox/mac/sandbox_compiler.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/multiprocess_func_list.h"
 
-namespace content {
+namespace sandbox {
 
 class SandboxMacCompilerTest : public base::MultiProcessTest {};
 
 MULTIPROCESS_TEST_MAIN(BasicProfileProcess) {
   std::string profile =
       "(version 1)"
       "(allow file-read* file-write* (literal \"/\"))";
 
   SandboxCompiler compiler(profile);
 
@@ skipping 122 matching lines @@
 
 TEST_F(SandboxMacCompilerTest, ProfileFunctionalityTestError) {
   base::Process process = SpawnChild("ProfileFunctionalityTestErrorProcess");
   ASSERT_TRUE(process.IsValid());
   int exit_code = 42;
   EXPECT_TRUE(process.WaitForExitWithTimeout(TestTimeouts::action_max_timeout(),
                                              &exit_code));
   EXPECT_EQ(exit_code, 0);
 }
 
-}  // namespace content
+}  // namespace sandbox