linux: move gtk_init to the right thread

chrome/plugin/plugin_thread.cc

 // Copyright (c) 2006-2008 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/plugin/plugin_thread.h"
 
 #include "build/build_config.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
@@ skipping 36 matching lines @@
 
 void PluginThread::OnControlMessageReceived(const IPC::Message& msg) {
   IPC_BEGIN_MESSAGE_MAP(PluginThread, msg)
     IPC_MESSAGE_HANDLER(PluginProcessMsg_CreateChannel, OnCreateChannel)
     IPC_MESSAGE_HANDLER(PluginProcessMsg_PluginMessage, OnPluginMessage)
   IPC_END_MESSAGE_MAP()
 }
 
 void PluginThread::Init() {
   lazy_tls.Pointer()->Set(this);
+#if defined(OS_LINUX)
+  {
+    // XEmbed plugins assume they are hosted in a Gtk application, so we need
+    // to initialize Gtk in the plugin process.
+    const std::vector<std::string>& args =
+        CommandLine::ForCurrentProcess()->argv();
+    int argc = args.size();
+    scoped_array<char *> argv(new char *[argc + 1]);
+    for (size_t i = 0; i < args.size(); ++i) {
+      // TODO(piman@google.com): can gtk_init modify argv? Just being safe
+      // here.
+      argv[i] = strdup(args[i].c_str());
+    }
+    argv[argc] = NULL;
+    char **argv_pointer = argv.get();
+    gtk_init(&argc, &argv_pointer);
+    for (size_t i = 0; i < args.size(); ++i) {
+      free(argv[i]);
+    }
+  }
+#endif
   ChildThread::Init();
 
   PatchNPNFunctions();
 #if defined(OS_WIN)
   CoInitialize(NULL);
 #endif
 
   notification_service_.reset(new NotificationService);
 
   // Preload the library to avoid loading, unloading then reloading
@@ skipping 130 matching lines @@
   }
 
   if (!result || net_error != net::OK)
     return false;
 
   *proxy_list = proxy_result;
   return true;
 }
 
 } // namespace webkit_glue