Change extension unload notification to indicate updates....

chrome/browser/sync/glue/theme_change_processor.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/sync/glue/theme_change_processor.h"
 
 #include "base/logging.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sync/engine/syncapi.h"
 #include "chrome/browser/sync/glue/theme_util.h"
@@ skipping 21 matching lines @@
   DCHECK(error_handler);
 }
 
 ThemeChangeProcessor::~ThemeChangeProcessor() {}
 
 void ThemeChangeProcessor::Observe(NotificationType type,
                                    const NotificationSource& source,
                                    const NotificationDetails& details) {
   DCHECK(running());
   DCHECK(profile_);
-  const Extension* extension = Details<const Extension>(details).ptr();
+  const Extension* extension = NULL;
+  if (type == NotificationType::EXTENSION_UNLOADED) {
+    extension = Details<UnloadedExtensionInfo>(details)->extension;
+  } else {
+    extension = Details<const Extension>(details).ptr();
+  }
   std::string current_or_future_theme_id =
       profile_->GetThemeProvider()->GetThemeID();
   const Extension* current_theme = profile_->GetTheme();
   switch (type.value) {
     case NotificationType::BROWSER_THEME_CHANGED:
       // We pay attention to this notification only when it signifies
       // that a user changed the theme to the default/system theme, or
       // when it signifies that a user changed the theme to a custom
       // one that was already installed.  Otherwise, current_theme
       // still points to the previous theme until it gets installed
@@ skipping 153 matching lines @@
       Source<Profile>(profile_));
 }
 
 void ThemeChangeProcessor::StopObserving() {
   DCHECK(profile_);
   VLOG(1) << "Unobserving all notifications";
   notification_registrar_.RemoveAll();
 }
 
 }  // namespace browser_sync