Don't close crashed tabs from extensions with background pages.

chrome/browser/ui/browser.cc

 // Copyright (c) 2011 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/ui/browser.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <shellapi.h>
 #endif  // OS_WIN
@@ skipping 4233 matching lines @@
                 extension->id()))
           ShowExtensionDisabledUI(service, profile_, extension);
       }
       break;
     }
 
     case chrome::NOTIFICATION_EXTENSION_UNLOADED: {
       if (window()->GetLocationBar())
         window()->GetLocationBar()->UpdatePageActions();
 
-      // Close any tabs from the unloaded extension.
-      const Extension* extension =
-          content::Details<UnloadedExtensionInfo>(details)->extension;
-      TabStripModel* model = tab_handler_->GetTabStripModel();
-      for (int i = model->count() - 1; i >= 0; --i) {
-        TabContents* tc = model->GetTabContentsAt(i)->tab_contents();
-        bool close_tab_contents =
-            tc->GetURL().SchemeIs(chrome::kExtensionScheme) &&
-            tc->GetURL().host() == extension->id();
-        // We want to close all panels originated by the unloaded extension.
-        close_tab_contents = close_tab_contents || (type_ == TYPE_PANEL &&
-            (web_app::GetExtensionIdFromApplicationName(app_name_) ==
+      // Close any tabs from the unloaded extension, unless it's terminated,
+      // in which case let the sad tabs remain.
+      if (content::Details<UnloadedExtensionInfo>(details)->reason !=
+          extension_misc::UNLOAD_REASON_TERMINATE) {
+        const Extension* extension =
+            content::Details<UnloadedExtensionInfo>(details)->extension;
+        TabStripModel* model = tab_handler_->GetTabStripModel();
+        for (int i = model->count() - 1; i >= 0; --i) {
+          TabContents* tc = model->GetTabContentsAt(i)->tab_contents();
+          bool close_tab_contents =
+              tc->GetURL().SchemeIs(chrome::kExtensionScheme) &&
+              tc->GetURL().host() == extension->id();
+          // We want to close all panels originated by the unloaded extension.
+          close_tab_contents = close_tab_contents ||
+              (type_ == TYPE_PANEL &&
+               (web_app::GetExtensionIdFromApplicationName(app_name_) ==
                 extension->id()));
-        if (close_tab_contents) {
-          CloseTabContents(tc);
+          if (close_tab_contents) {
+            CloseTabContents(tc);
+          }
         }
       }
-
       break;
     }
 
     case chrome::NOTIFICATION_EXTENSION_PROCESS_TERMINATED: {
       Profile* profile = content::Source<Profile>(source).ptr();
       if (profile_->IsSameProfile(profile) && window()->GetLocationBar())
         window()->GetLocationBar()->InvalidatePageActions();
       break;
     }
 
@@ skipping 1226 matching lines @@
 }
 
 void Browser::UpdateFullscreenExitBubbleContent() {
   GURL url;
   if (fullscreened_tab_)
     url = fullscreened_tab_->tab_contents()->GetURL();
 
   window_->UpdateFullscreenExitBubbleContent(
       url, GetFullscreenExitBubbleType());
 }