Add warmup and sandbox file-read permission for testing

content/common/sandbox_mac.h

 // Copyright (c) 2012 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.
 
 #ifndef CONTENT_COMMON_SANDBOX_MAC_H_
 #define CONTENT_COMMON_SANDBOX_MAC_H_
 
 #include <map>
 #include <string>
 
@@ skipping 44 matching lines @@
   std::map<std::string, std::string> params_map_;
 
   // The sandbox profile source code.
   const std::string profile_str_;
 
   DISALLOW_COPY_AND_ASSIGN(SandboxCompiler);
 };
 
 class CONTENT_EXPORT Sandbox {
  public:
-
+  class Loader;
   // Warm up System APIs that empirically need to be accessed before the
   // sandbox is turned on. |sandbox_type| is the type of sandbox to warm up.
   // Valid |sandbox_type| values are defined by the enum SandboxType, or can be
   // defined by the embedder via
   // ContentClient::GetSandboxProfileForProcessType().
   static void SandboxWarmup(int sandbox_type);
 
   // Turns on the OS X sandbox for this process.
   // |sandbox_type| - type of Sandbox to use. See SandboxWarmup() for legal
   // values.
@@ skipping 36 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(MacDirAccessSandboxTest, StringEscape);
   FRIEND_TEST_ALL_PREFIXES(MacDirAccessSandboxTest, RegexEscape);
   FRIEND_TEST_ALL_PREFIXES(MacDirAccessSandboxTest, SandboxAccess);
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(Sandbox);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_SANDBOX_MAC_H_