From e440ad2714ba693c8c3ea103eac6485e0c8be466 Mon Sep 17 00:00:00 2001
From: Cheng Zhao <zcbenz@gmail.com>
Date: Mon, 10 Jun 2013 20:42:10 +0800
Subject: [PATCH] Make window aware of renderer crashes.

---
 browser/native_window.cc         | 8 ++++++++
 browser/native_window.h          | 2 ++
 browser/native_window_observer.h | 3 +++
 3 files changed, 13 insertions(+)

diff --git a/browser/native_window.cc b/browser/native_window.cc
index 62553eab89f7..fe00c100c9f6 100644
--- a/browser/native_window.cc
+++ b/browser/native_window.cc
@@ -15,6 +15,7 @@
 #include "browser/atom_browser_main_parts.h"
 #include "browser/atom_javascript_dialog_manager.h"
 #include "browser/window_list.h"
+#include "content/public/browser/invalidate_type.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_source.h"
@@ -260,6 +261,13 @@ void NativeWindow::RendererResponsive(content::WebContents* source) {
   FOR_EACH_OBSERVER(NativeWindowObserver, observers_, OnRendererResponsive());
 }
 
+void NativeWindow::NavigationStateChanged(const content::WebContents* source,
+                                          unsigned changed_flags) {
+  if (changed_flags == content::INVALIDATE_TYPE_TAB &&
+      source->IsCrashed())
+    FOR_EACH_OBSERVER(NativeWindowObserver, observers_, OnRendererCrashed());
+}
+
 bool NativeWindow::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(NativeWindow, message)
diff --git a/browser/native_window.h b/browser/native_window.h
index 56e138ea99fc..d14d70a593ef 100644
--- a/browser/native_window.h
+++ b/browser/native_window.h
@@ -149,6 +149,8 @@ class NativeWindow : public content::WebContentsDelegate,
       const content::WebContents* source) const OVERRIDE;
   virtual void RendererUnresponsive(content::WebContents* source) OVERRIDE;
   virtual void RendererResponsive(content::WebContents* source) OVERRIDE;
+  virtual void NavigationStateChanged(const content::WebContents* source,
+                                      unsigned changed_flags) OVERRIDE;
 
   // Implementations of content::WebContentsObserver.
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
diff --git a/browser/native_window_observer.h b/browser/native_window_observer.h
index dc274b0066fb..cffe39505ab5 100644
--- a/browser/native_window_observer.h
+++ b/browser/native_window_observer.h
@@ -31,6 +31,9 @@ class NativeWindowObserver {
 
   // Called when renderer recovers.
   virtual void OnRendererResponsive() {}
+
+  // Called when renderer has crashed.
+  virtual void OnRendererCrashed() {}
 };
 
 }  // namespace atom