Change the ChromiumPasteboard to have a notion of an alternate clipboard...

chrome/browser/renderer_host/render_widget_host_view_gtk.cc

Index: chrome/browser/renderer_host/render_widget_host_view_gtk.cc
===================================================================
--- chrome/browser/renderer_host/render_widget_host_view_gtk.cc	(revision 25640)
+++ chrome/browser/renderer_host/render_widget_host_view_gtk.cc	(working copy)
@@ -524,11 +524,6 @@
   gtk_clipboard_set_text(x_clipboard, text.c_str(), text.length());
 }
 
-void RenderWidgetHostViewGtk::PasteFromSelectionClipboard() {
-  GtkClipboard* x_clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
-  gtk_clipboard_request_text(x_clipboard, ReceivedSelectionText, this);
-}
-
 void RenderWidgetHostViewGtk::ShowingContextMenu(bool showing) {
   is_showing_context_menu_ = showing;
 }
@@ -614,17 +609,6 @@
     gdk_cursor_unref(gdk_cursor);
 }
 
-void RenderWidgetHostViewGtk::ReceivedSelectionText(GtkClipboard* clipboard,
-    const gchar* text, gpointer userdata) {
-  // If there's nothing to paste (|text| is NULL), do nothing.
-  if (!text)
-    return;
-  RenderWidgetHostViewGtk* host_view =
-      reinterpret_cast<RenderWidgetHostViewGtk*>(userdata);
-  host_view->host_->Send(new ViewMsg_InsertText(host_view->host_->routing_id(),
-                                                UTF8ToUTF16(text)));
-}
-
 void RenderWidgetHostViewGtk::CreatePluginContainer(
     gfx::PluginWindowHandle id) {
   plugin_container_manager_.CreatePluginContainer(id);