Make the RenderViewHostImpl update its visibility after a swap.

content/browser/renderer_host/render_widget_host_view_gtk.cc

 // Copyright (c) 2012 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 "content/browser/renderer_host/render_widget_host_view_gtk.h"
 
 #include <cairo/cairo.h>
 #include <gdk/gdk.h>
 #include <gdk/gdkkeysyms.h>
 #include <gdk/gdkx.h>
@@ skipping 665 matching lines @@
   gtk_window_resize(window, bounds.width(), bounds.height());
   gtk_window_fullscreen(window);
   DoPopupOrFullscreenInit(window, bounds);
 }
 
 RenderWidgetHost* RenderWidgetHostViewGtk::GetRenderWidgetHost() const {
   return host_;
 }
 
 void RenderWidgetHostViewGtk::WasShown() {
-  if (!is_hidden_)
+  if (!host_ || !is_hidden_)
     return;
 
   if (web_contents_switch_paint_time_.is_null())
     web_contents_switch_paint_time_ = base::TimeTicks::Now();
   is_hidden_ = false;
+
   host_->WasShown();
 }
 
 void RenderWidgetHostViewGtk::WasHidden() {
-  if (is_hidden_)
+  if (!host_ || is_hidden_)
     return;
 
   // If we receive any more paint messages while we are hidden, we want to
   // ignore them so we don't re-allocate the backing store.  We will paint
   // everything again when we become selected again.
   is_hidden_ = true;
 
   // If we have a renderer, then inform it that we are being hidden so it can
   // reduce its resource utilization.
   host_->WasHidden();
@@ skipping 78 matching lines @@
 bool RenderWidgetHostViewGtk::Send(IPC::Message* message) {
   return host_->Send(message);
 }
 
 bool RenderWidgetHostViewGtk::IsSurfaceAvailableForCopy() const {
   return true;
 }
 
 void RenderWidgetHostViewGtk::Show() {
   gtk_widget_show(view_.get());
+  WasShown();
 }
 
 void RenderWidgetHostViewGtk::Hide() {
   gtk_widget_hide(view_.get());
+  WasHidden();
 }
 
 bool RenderWidgetHostViewGtk::IsShowing() {
   return gtk_widget_get_visible(view_.get());
 }
 
 gfx::Rect RenderWidgetHostViewGtk::GetViewBounds() const {
   GdkWindow* gdk_window = gtk_widget_get_window(view_.get());
   if (!gdk_window)
     return gfx::Rect(requested_size_);
@@ skipping 763 matching lines @@
     gfx::PluginWindowHandle id) {
   plugin_container_manager_.CreatePluginContainer(id);
 }
 
 void RenderWidgetHostViewGtk::OnDestroyPluginContainer(
     gfx::PluginWindowHandle id) {
   plugin_container_manager_.DestroyPluginContainer(id);
 }
 
 }  // namespace content