Change other usages of .size() to .empty() when applicable.

chrome/browser/ui/gtk/options/passwords_page_gtk.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/gtk/options/passwords_page_gtk.h"
 
 #include <string>
 
 #include "base/stl_util-inl.h"
 #include "base/utf_string_conversions.h"
@@ skipping 147 matching lines @@
   gtk_list_store_clear(password_list_store_);
   STLDeleteElements(&password_list_);
   password_list_ = result;
   for (size_t i = 0; i < result.size(); ++i) {
     GtkTreeIter iter;
     gtk_list_store_insert_with_values(password_list_store_, &iter, (gint) i,
         COL_SITE,
         UTF16ToUTF8(net::FormatUrl(result[i]->origin, languages)).c_str(),
         COL_USERNAME, UTF16ToUTF8(result[i]->username_value).c_str(), -1);
   }
-  gtk_widget_set_sensitive(remove_all_button_, result.size() > 0);
+  gtk_widget_set_sensitive(remove_all_button_, !result.empty());
 }
 
 void PasswordsPageGtk::HidePassword() {
   password_showing_ = false;
   gtk_label_set_text(GTK_LABEL(password_), "");
   gtk_button_set_label(GTK_BUTTON(show_password_button_),
       l10n_util::GetStringUTF8(IDS_PASSWORDS_PAGE_VIEW_SHOW_BUTTON).c_str());
 }
 
 void PasswordsPageGtk::Observe(NotificationType type,
@@ skipping 36 matching lines @@
   GtkTreeIter child_iter;
   gtk_tree_model_sort_convert_iter_to_child_iter(
       GTK_TREE_MODEL_SORT(password_list_sort_), &child_iter, &iter);
 
   // Remove from GTK list, DB, and vector.
   gtk_list_store_remove(password_list_store_, &child_iter);
   GetPasswordStore()->RemoveLogin(*password_list_[index]);
   delete password_list_[index];
   password_list_.erase(password_list_.begin() + index);
 
-  gtk_widget_set_sensitive(remove_all_button_, password_list_.size() > 0);
+  gtk_widget_set_sensitive(remove_all_button_, !password_list_.empty());
 }
 
 void PasswordsPageGtk::OnRemoveAllButtonClicked(GtkWidget* widget) {
   GtkWindow* window = GTK_WINDOW(gtk_widget_get_toplevel(page_));
   GtkWidget* confirm = gtk_message_dialog_new(
       window,
       static_cast<GtkDialogFlags>(
           GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT),
       GTK_MESSAGE_QUESTION,
       GTK_BUTTONS_YES_NO,
@@ skipping 122 matching lines @@
   else
     LOG(ERROR) << "No password store! Cannot display passwords.";
 }
 
 void PasswordsPageGtk::PasswordListPopulater::OnPasswordStoreRequestDone(
     int handle, const std::vector<webkit_glue::PasswordForm*>& result) {
   DCHECK_EQ(pending_login_query_, handle);
   pending_login_query_ = 0;
   page_->SetPasswordList(result);
 }