Add the 'Ask Google' option to the spelling submenu on Mac.

chrome/browser/renderer_context_menu/spellchecker_submenu_observer_mac.cc

Index: chrome/browser/renderer_context_menu/spellchecker_submenu_observer_mac.cc
diff --git a/chrome/browser/renderer_context_menu/spellchecker_submenu_observer_mac.cc b/chrome/browser/renderer_context_menu/spellchecker_submenu_observer_mac.cc
index a90bc44dbb2ef0cf34906213b6b3ad380373912f..44737f2f8465c503c14c7da348a85e2382c0e18b 100644
--- a/chrome/browser/renderer_context_menu/spellchecker_submenu_observer_mac.cc
+++ b/chrome/browser/renderer_context_menu/spellchecker_submenu_observer_mac.cc
@@ -61,6 +61,13 @@ void SpellCheckerSubMenuObserver::InitMenu(
       l10n_util::GetStringUTF16(
           IDS_CONTENT_CONTEXT_CHECK_SPELLING_WHILE_TYPING));
 
+  // Add a check item "Ask Google for spelling suggestions" item. (This class
+  // does not handle this item because the SpellingMenuObserver class handles it
+  // on behalf of this class.)
+  submenu_model_.AddCheckItem(
+      IDC_CONTENT_CONTEXT_SPELLING_TOGGLE,
+      l10n_util::GetStringUTF16(IDS_CONTENT_CONTEXT_SPELLING_ASK_GOOGLE));
+
   proxy_->AddSubMenu(
       IDC_SPELLCHECK_MENU,
       l10n_util::GetStringUTF16(IDS_CONTENT_CONTEXT_SPELLCHECK_MENU),