[Mac]: Make dictionary context menu item use system settings for whether to launch Dictionary.app o…

chrome/browser/ui/cocoa/tab_contents/render_view_context_menu_mac.mm

 // Copyright (c) 2012 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/cocoa/tab_contents/render_view_context_menu_mac.h"
 
 #include "base/compiler_specific.h"
 #import "base/mac/scoped_sending_event.h"
 #include "base/memory/scoped_nsobject.h"
 #include "base/message_loop.h"
@@ skipping 174 matching lines @@
           IDS_SPEECH_STOP_SPEAKING_MAC);
       menu_model_.AddSubMenu(
           IDC_CONTENT_CONTEXT_SPEECH_MENU,
           l10n_util::GetStringUTF16(IDS_SPEECH_MAC),
           &speech_submenu_model_);
     }
   }
 }
 
 void RenderViewContextMenuMac::LookUpInDictionary() {
-  // TODO(morrita): On Safari, A dictionary panel could be shown
-  // based on a preference setting of Dictionary.app.  We currently
-  // don't support it: http://crbug.com/17951
-  NSString* text = base::SysUTF16ToNSString(params_.selection_text);
-  NSPasteboard* pboard = [NSPasteboard pasteboardWithUniqueName];
-  // 10.5 and earlier require declareTypes before setData.
-  // See the documentation on [NSPasteboard declareTypes].
-  NSArray* toDeclare = [NSArray arrayWithObject:NSStringPboardType];
-  [pboard declareTypes:toDeclare owner:nil];
-  BOOL ok = [pboard setString:text forType:NSStringPboardType];
-  if (ok)
-    NSPerformService(@"Look Up in Dictionary", pboard);
+  content::RenderWidgetHostView* view = GetRenderViewHost()->GetView();
+  if (view)
+    view->ShowDefinitionForSelection();
 }
 
 void RenderViewContextMenuMac::StartSpeaking() {
   content::RenderWidgetHostView* view = GetRenderViewHost()->GetView();
   if (view)
     view->SpeakSelection();
 }
 
 void RenderViewContextMenuMac::StopSpeaking() {
   content::RenderWidgetHostView* view = GetRenderViewHost()->GetView();
   if (view)
     view->StopSpeaking();
 }
 
 void RenderViewContextMenuMac::UpdateMenuItem(int command_id,
                                               bool enabled,
                                               bool hidden,
                                               const string16& title) {
   NSMenuItem* item = GetMenuItemByID(&menu_model_, [menu_controller_ menu],
                                      command_id);
   if (!item)
     return;
 
   // Update the returned NSMenuItem directly so we can update it immediately.
   [item setEnabled:enabled];
   [item setTitle:SysUTF16ToNSString(title)];
   [item setHidden:hidden];
   [[item menu] itemChanged:item];
 }