Don't send tab switching/killing/creating keyboard accelerators to pages. Th...

chrome/browser/renderer_host/render_widget_host_view_gtk.cc

 // Copyright (c) 2006-2008 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 "chrome/browser/renderer_host/render_widget_host_view_gtk.h"
 
 // If this gets included after the gtk headers, then a bunch of compiler
 // errors happen because of a "#define Status int" in Xlib.h, which interacts
 // badly with URLRequestStatus::Status.
 #include "chrome/common/render_messages.h"
@@ skipping 501 matching lines @@
   }
 
   // Remove |view_| from all containers now, so nothing else can hold a
   // reference to |view_|'s widget except possibly a gtk signal handler if
   // this code is currently executing within the context of a gtk signal
   // handler.  Note that |view_| is still alive after this call.  It will be
   // deallocated in the destructor.
   // See http://www.crbug.com/11847 for details.
   gtk_widget_destroy(view_.get());
 
+  // The RenderWidgetHost's destruction led here, so don't call it.
+  host_ = NULL;
+
   MessageLoop::current()->DeleteSoon(FROM_HERE, this);
 }
 
 void RenderWidgetHostViewGtk::SetTooltipText(const std::wstring& tooltip_text) {
   if (tooltip_text.empty()) {
     gtk_widget_set_has_tooltip(view_.get(), FALSE);
   } else {
     gtk_widget_set_tooltip_text(view_.get(), WideToUTF8(tooltip_text).c_str());
   }
 }
@@ skipping 104 matching lines @@
   plugin_container_manager_.CreatePluginContainer(id);
 }
 
 void RenderWidgetHostViewGtk::DestroyPluginContainer(
     gfx::PluginWindowHandle id) {
   plugin_container_manager_.DestroyPluginContainer(id);
 }
 
 void RenderWidgetHostViewGtk::ForwardKeyboardEvent(
     const NativeWebKeyboardEvent& event) {
+  if (!host_)
+    return;
+
   EditCommands edit_commands;
   if (key_bindings_handler_->Match(event, &edit_commands)) {
     host_->ForwardEditCommandsForNextKeyEvent(edit_commands);
   }
   host_->ForwardKeyboardEvent(event);
 }