Pure pedantry: Replace all ".size() == 0" with ".empty()".

chrome/browser/tab_contents/render_view_context_menu.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 <algorithm>
 #include <set>
 
 #include "chrome/browser/tab_contents/render_view_context_menu.h"
 
 #include "base/command_line.h"
@@ skipping 344 matching lines @@
     int menu_id = IDC_EXTENSIONS_CONTEXT_CUSTOM_FIRST + (*index)++;
     if (menu_id >= IDC_EXTENSIONS_CONTEXT_CUSTOM_LAST)
       return;
     extension_item_map_[menu_id] = item->id();
     string16 title = item->TitleWithReplacement(selection_text,
                                                 kMaxExtensionItemTitleLength);
     if (item->type() == ExtensionMenuItem::NORMAL) {
       ExtensionMenuItem::List children =
           GetRelevantExtensionItems(item->children(), params_,
                                     profile_, can_cross_incognito);
-      if (children.size() == 0) {
+      if (children.empty()) {
         menu_model->AddItem(menu_id, title);
       } else {
         ui::SimpleMenuModel* submenu = new ui::SimpleMenuModel(this);
         extension_menu_models_.push_back(submenu);
         menu_model->AddSubMenu(menu_id, title, submenu);
         RecursivelyAppendExtensionItems(children, can_cross_incognito,
                                         submenu, index);
       }
     } else if (item->type() == ExtensionMenuItem::CHECKBOX) {
       menu_model->AddCheckItem(menu_id, title);
@@ skipping 337 matching lines @@
        IDC_SPELLCHECK_SUGGESTION_0 + i <= IDC_SPELLCHECK_SUGGESTION_LAST;
        ++i) {
     menu_model_.AddItem(IDC_SPELLCHECK_SUGGESTION_0 + static_cast<int>(i),
                         params_.dictionary_suggestions[i]);
   }
   if (params_.dictionary_suggestions.size() > 0)
     menu_model_.AddSeparator();
 
   // If word is misspelled, give option for "Add to dictionary"
   if (!params_.misspelled_word.empty()) {
-    if (params_.dictionary_suggestions.size() == 0) {
+    if (params_.dictionary_suggestions.empty()) {
       menu_model_.AddItem(0,
           l10n_util::GetStringUTF16(
               IDS_CONTENT_CONTEXT_NO_SPELLING_SUGGESTIONS));
     }
     menu_model_.AddItemWithStringId(IDC_SPELLCHECK_ADD_TO_DICTIONARY,
                                     IDS_CONTENT_CONTEXT_ADD_TO_DICTIONARY);
     menu_model_.AddSeparator();
   }
 
   menu_model_.AddItemWithStringId(IDC_CONTENT_CONTEXT_UNDO,
@@ skipping 798 matching lines @@
       profile_->GetPrefs()->GetString(prefs::kAcceptLanguages),
       g_browser_process->clipboard());
 }
 
 void RenderViewContextMenu::MediaPlayerActionAt(
     const gfx::Point& location,
     const WebMediaPlayerAction& action) {
   source_tab_contents_->render_view_host()->MediaPlayerActionAt(
       location, action);
 }