linux: OOP windowed plugins

There are still a few issues, but that's a start.
- only windowed plugins
- we can't currently create the gtksocket in background tabs, because their gtkwidgets are not yet in the hierarchy, so they can't be realized (that's what gives the XID).
- the plugin process talks to the browser process through the renderer process to create/destroy the gtksockets, because the plugin doesn't know which renderer it's talking to. We need a bit more plumbing to be able to have direct IPC.
- some code is duplicated between chrome and test_shell. We should probably refactor it, but I'm not sure where the common part should live.

Patch from Antoine Labour <piman@google.com>, with some touchups by me.

Review URL: http://codereview.chromium.org/146078

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@20041 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 16 insertions, 0 deletions

diff --git a/chrome/plugin/plugin_main.cc b/chrome/plugin/plugin_main.cc
index fb8880f..a710b70 100644
--- a/chrome/plugin/plugin_main.cc
+++ b/chrome/plugin/plugin_main.cc
@@ -67,6 +67,22 @@ int PluginMain(const MainFunctionParams& parameters) {
                          MB_OK | MB_SETFOREGROUND);
   }
 #else
+#if defined(OS_LINUX)
+  {
+    // XEmbed plugins assume they are hosted in a Gtk application, so we need
+    // to initialize Gtk in the plugin process.
+    // TODO(evanm): hoist this up nearer to where we have argc/argv.
+    const std::vector<std::string>& args = parameters.command_line_.argv();
+    int argc = args.size();
+    scoped_array<const char *> argv(new const char *[argc + 1]);
+    for (int i = 0; i < argc; ++i) {
+      argv[i] = args[i].c_str();
+    }
+    argv[argc] = NULL;
+    const char **argv_pointer = argv.get();
+    gtk_init(&argc, const_cast<char***>(&argv_pointer));
+  }
+#endif
   NOTIMPLEMENTED() << " non-windows startup, plugin startup dialog etc.";
 #endif