Attempt at fixing crash from ExtensionToolbarModel. See bug for

background as to what is happening. Long term the observer likely
needs a type parameter, but this is to stop the crashing.

BUG=142999
TEST=none
R=mpcomplete@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10830345

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@151835 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/extensions/extension_toolbar_model.cc

@@ -200,13 +200,19 @@ void ExtensionToolbarModel::AddExtension(const Extension* extension,
       last_extension_removed_index_ < list->size()) {
     list->insert(list->begin() + last_extension_removed_index_,
                  make_scoped_refptr(extension));
+    // TODO: figure out the right long term solution.
+    if (list == &toolbar_items_) {
       FOR_EACH_OBSERVER(Observer, observers_,
           BrowserActionAdded(extension, last_extension_removed_index_));
+    }
   } else {
     list->push_back(make_scoped_refptr(extension));
+    // TODO: figure out the right long term solution.
+    if (list == &toolbar_items_) {
       FOR_EACH_OBSERVER(Observer, observers_,
                         BrowserActionAdded(extension, list->size() - 1));
     }
+  }
 
   last_extension_removed_ = "";
   last_extension_removed_index_ = -1;
@@ -225,8 +231,11 @@ void ExtensionToolbarModel::RemoveExtension(const Extension* extension,
   last_extension_removed_index_ = pos - list->begin();
 
   list->erase(pos);
+  // TODO: figure out the right long term solution.
+  if (list == &toolbar_items_) {
     FOR_EACH_OBSERVER(Observer, observers_,
                       BrowserActionRemoved(extension));
+  }
 
   UpdatePrefs();
 }