Get rid of the following dependencies from content:

chrome/browser/browser_process_impl.cc

 // 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.
 
 #include "chrome/browser/browser_process_impl.h"
 
 #include <map>
 #include <set>
 #include <vector>
 
@@ skipping 748 matching lines @@
   chrome::RegisterInternalDefaultPlugin();
 
   // Register the internal Flash if available.
   FilePath path;
   if (!CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kDisableInternalFlash) &&
       PathService::Get(chrome::FILE_FLASH_PLUGIN, &path)) {
     webkit::npapi::PluginList::Singleton()->AddExtraPluginPath(path);
   }
 
+#if defined(OS_POSIX)
+  // Also find plugins in a user-specific plugins dir,
+  // e.g. ~/.config/chromium/Plugins.
+  FilePath user_data_dir;
+  if (PathService::Get(chrome::DIR_USER_DATA, &user_data_dir)) {
+    webkit::npapi::PluginList::Singleton()->AddExtraPluginDir(
+        user_data_dir.Append("Plugins"));
+  }
+#endif
+
   scoped_ptr<IOThread> thread(new IOThread(
       local_state(), net_log_.get(), extension_event_router_forwarder_.get()));
   base::Thread::Options options;
   options.message_loop_type = MessageLoop::TYPE_IO;
   if (!thread->StartWithOptions(options))
     return;
   io_thread_.swap(thread);
 }
 
 void BrowserProcessImpl::CreateFileThread() {
@@ skipping 339 matching lines @@
 }
 
 void BrowserProcessImpl::OnAutoupdateTimer() {
   if (CanAutorestartForUpdate()) {
     DLOG(WARNING) << "Detected update.  Restarting browser.";
     RestartPersistentInstance();
   }
 }
 
 #endif  // (defined(OS_WIN) || defined(OS_LINUX)) && !defined(OS_CHROMEOS)