Initialize the bootstrap sandbox in the browser process.

content/plugin/plugin_main_mac.mm

 // Copyright (c) 2011 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.
 
 #import <AppKit/AppKit.h>
+#include <servers/bootstrap.h>
 
 #include "base/environment.h"
+#include "base/mac/mach_logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string_util.h"
 #include "content/common/plugin_carbon_interpose_constants_mac.h"
+#include "content/common/sandbox_init_mac.h"
 #include "content/plugin/plugin_interpose_util_mac.h"
 #include "content/public/common/content_client.h"
 
 namespace content {
 
 #if !defined(__LP64__)
 void TrimInterposeEnvironment() {
   scoped_ptr<base::Environment> env(base::Environment::Create());
 
   std::string interpose_list;
@@ skipping 18 matching lines @@
              interpose_list.substr(suffix_offset) == interpose_library_path) {
     std::string trimmed_list = interpose_list.substr(0, suffix_offset - 1);
     env->SetVar(kDYLDInsertLibrariesKey, trimmed_list.c_str());
   } else {
     NOTREACHED() << "Missing Carbon interposing library";
   }
 }
 #endif
 
 void InitializeChromeApplication() {
+  // The bootstrap sandbox has taken over the bootstrap port. However, NPAPI
+  // plugins request servers with the BOOTSTRAP_PER_PID_SERVICE flag. This
+  // will fail, since the browser will be forwarding the message on behalf of
+  // the plugin, and the browser has already created these per-pid services
+  // for itself.
+  //
+  // Instead, request the real bootstrap port from the sandbox server, which
+  // can then be used by the plugin.
+  mach_port_t new_bootstrap_port = MACH_PORT_NULL;
+  kern_return_t kr = bootstrap_look_up(bootstrap_port,
+      kBootstrapPortNameForNPAPIPlugins, &new_bootstrap_port);
+  BOOTSTRAP_LOG_IF(ERROR, kr != KERN_SUCCESS, kr)
+      << "Failed to look up original bootstrap port.";
+  if (kr == KERN_SUCCESS) {
+    bootstrap_port = new_bootstrap_port;
+    kr = task_set_bootstrap_port(mach_task_self(), new_bootstrap_port);
+    MACH_LOG_IF(ERROR, kr != KERN_SUCCESS, kr)
+        << "Failed to reset TASK_BOOTSTRAP_PORT.";
+  }
+
+
   [NSApplication sharedApplication];
   mac_plugin_interposing::SetUpCocoaInterposing();
 }
 
 }  // namespace content