Update of the extension install UI:

chrome/browser/extensions/extensions_service.cc

Index: chrome/browser/extensions/extensions_service.cc
diff --git a/chrome/browser/extensions/extensions_service.cc b/chrome/browser/extensions/extensions_service.cc
index 03313660ee1fd67c2e76f6ec967688aa7f01ee7d..91a7ce8408bfc0e733c589ff1e7754aae01f9769 100644
--- a/chrome/browser/extensions/extensions_service.cc
+++ b/chrome/browser/extensions/extensions_service.cc
@@ -379,16 +379,15 @@ void ExtensionsService::OnExtensionLoaded(Extension* extension) {
     Extension* old = GetExtensionByIdInternal(extension->id(), true, true);
     if (old) {
       if (extension->version()->CompareTo(*(old->version())) > 0) {
-        bool higher_permissions =
-            (extension->GetPermissionClass() > old->GetPermissionClass());
+        bool allow_silent_upgrade = Extension::AllowSilentUpgrade(old, extension);

[Matt Perry, 2009/08/26 21:10:32]

80 cols

 
         // To upgrade an extension in place, unload the old one and
         // then load the new one.
         UnloadExtension(old->id());
         old = NULL;
 
-        if (higher_permissions) {
-          // Extension was upgraded to a high permission class. Disable it and
+        if (!allow_silent_upgrade) {
+          // Extension has changed permissions significantly. Disable it and
           // notify the user.
           extension_prefs_->SetExtensionState(extension, Extension::DISABLED);
           NotificationService::current()->Notify(