This adds some plumbing for propagating the reason for a renderer's death

chrome/browser/renderer_host/render_widget_host.cc

 // Copyright (c) 2010 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.h"
 
 #include "app/keyboard_codes.h"
 #include "base/auto_reset.h"
 #include "base/command_line.h"
 #include "base/message_loop.h"
@@ skipping 616 matching lines @@
   // only handled by RenderView.
 }
 
 #if defined(TOUCH_UI)
 void RenderWidgetHost::ForwardTouchEvent(
     const WebKit::WebTouchEvent& touch_event) {
   ForwardInputEvent(touch_event, sizeof(WebKit::WebTouchEvent), false);
 }
 #endif
 
-void RenderWidgetHost::RendererExited() {
+void RenderWidgetHost::RendererExited(base::TerminationStatus status,
+                                      int exit_code) {
   // Clearing this flag causes us to re-create the renderer when recovering
   // from a crashed renderer.
   renderer_initialized_ = false;
 
   // Must reset these to ensure that mouse move/wheel events work with a new
   // renderer.
   mouse_move_pending_ = false;
   next_mouse_move_.reset();
   mouse_wheel_pending_ = false;
   coalesced_mouse_wheel_events_.clear();
 
   // Must reset these to ensure that keyboard events work with a new renderer.
   key_queue_.clear();
   suppress_next_char_events_ = false;
 
   // Reset some fields in preparation for recovering from a crash.
   resize_ack_pending_ = false;
   repaint_ack_pending_ = false;
 
   in_flight_size_.SetSize(0, 0);
   in_flight_reserved_rect_.SetRect(0, 0, 0, 0);
   current_size_.SetSize(0, 0);
   current_reserved_rect_.SetRect(0, 0, 0, 0);
   is_hidden_ = false;
   is_accelerated_compositing_active_ = false;
 
   if (view_) {
-    view_->RenderViewGone();
+    view_->RenderViewGone(status, exit_code);
     view_ = NULL;  // The View should be deleted by RenderViewGone.
   }
 
   BackingStoreManager::RemoveBackingStore(this);
 }
 
 void RenderWidgetHost::UpdateTextDirection(WebTextDirection direction) {
   text_direction_updated_ = true;
   text_direction_ = direction;
 }
@@ skipping 85 matching lines @@
   if (is_unresponsive_) {
     is_unresponsive_ = false;
     NotifyRendererResponsive();
   }
 }
 
 void RenderWidgetHost::OnMsgRenderViewReady() {
   WasResized();
 }
 
-void RenderWidgetHost::OnMsgRenderViewGone() {
+void RenderWidgetHost::OnMsgRenderViewGone(int status, int exit_code) {
   // TODO(evanm): This synchronously ends up calling "delete this".
   // Is that really what we want in response to this message?  I'm matching
   // previous behavior of the code here.
   Destroy();
 }
 
 void RenderWidgetHost::OnMsgClose() {
   Shutdown();
 }
 
@@ skipping 429 matching lines @@
     // of this key event.
     if (!processed && !is_hidden_ && !front_item.skip_in_browser) {
       UnhandledKeyboardEvent(front_item);
 
       // WARNING: This RenderWidgetHost can be deallocated at this point
       // (i.e.  in the case of Ctrl+W, where the call to
       // UnhandledKeyboardEvent destroys this RenderWidgetHost).
     }
   }
 }