GTK: Adds #error statements to GTK code to root out unknown bots.

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 35 matching lines @@
 #include "ui/base/x/active_window_watcher_x.h"
 #include "ui/base/x/x11_util.h"
 #include "ui/gfx/gtk_compat.h"
 #include "ui/gfx/gtk_native_view_id_manager.h"
 #include "ui/gfx/gtk_preserve_window.h"
 #include "ui/gfx/text_elider.h"
 
 using blink::WebMouseWheelEvent;
 using blink::WebScreenInfo;
 
+#error "The GTK+ port will be deleted later this week. If you are seeing this, you are trying to compile it. Please check your gyp flags for 'use_aura=0' and remove them."
+
 namespace content {
 namespace {
 
 // Paint rects on Linux are bounded by the maximum size of a shared memory
 // region. By default that's 32MB, but many distros increase it significantly
 // (i.e. to 256MB).
 //
 // We fetch the maximum value from /proc/sys/kernel/shmmax at runtime and, if
 // we exceed that, then we limit the height of the paint rect in the renderer.
 //
@@ skipping 1544 matching lines @@
 void RenderWidgetHostViewGtk::OnDestroyPluginContainer(
     gfx::PluginWindowHandle id) {
   plugin_container_manager_.DestroyPluginContainer(id);
 }
 
 SkBitmap::Config RenderWidgetHostViewGtk::PreferredReadbackFormat() {
   return SkBitmap::kARGB_8888_Config;
 }
 
 }  // namespace content