Resize the render widget host even if the widget is hidden.

chrome/browser/renderer_host/render_widget_host_view_gtk.h

Index: chrome/browser/renderer_host/render_widget_host_view_gtk.h
diff --git a/chrome/browser/renderer_host/render_widget_host_view_gtk.h b/chrome/browser/renderer_host/render_widget_host_view_gtk.h
index e0b3d6480c8cedec928e7b575bd0d5e2d63d8477..102eb090ee87b0d6c1186a85384474319a60b4cc 100644
--- a/chrome/browser/renderer_host/render_widget_host_view_gtk.h
+++ b/chrome/browser/renderer_host/render_widget_host_view_gtk.h
@@ -136,6 +136,10 @@ class RenderWidgetHostViewGtk : public RenderWidgetHostView {
 
   // Helper class that lets us allocate plugin containers and move them.
   GtkPluginContainerManager plugin_container_manager_;
+
+  // The size that we want the renderer to be.  We keep this in a separate
+  // variable because resizing in GTK+ is async.
+  gfx::Size requested_size_;
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_GTK_H_