cocoa: add some tab-manipulation menu items

chrome/browser/ui/cocoa/browser_window_command_handler.mm

Index: chrome/browser/ui/cocoa/browser_window_command_handler.mm
diff --git a/chrome/browser/ui/cocoa/browser_window_command_handler.mm b/chrome/browser/ui/cocoa/browser_window_command_handler.mm
index f9d82e2344bd623e6d2865f9e034eac6b1432099..092936d8bc211551e8eb7b4a9dbad0fc93f531d2 100644
--- a/chrome/browser/ui/cocoa/browser_window_command_handler.mm
+++ b/chrome/browser/ui/cocoa/browser_window_command_handler.mm
@@ -56,6 +56,18 @@ void UpdateToggleStateWithTag(NSInteger tag, id item, NSWindow* window) {
     SetToggleState(prefs->GetBoolean(prefs::kShowFullscreenToolbar), item);
     return;
   }
+
+  if (tag == IDC_WINDOW_MUTE_TAB) {
+    TabStripModel* model = browser->tab_strip_model();
+    SetToggleState(!model->WillContextMenuMute(model->active_index()), item);
+    return;
+  }
+
+  if (tag == IDC_WINDOW_PIN_TAB) {
+    TabStripModel* model = browser->tab_strip_model();
+    SetToggleState(!model->WillContextMenuPin(model->active_index()), item);
+    return;
+  }
 }
 
 NSString* GetTitleForViewsFullscreenMenuItem(Browser* browser) {