cocoa: add some tab-manipulation menu items

chrome/browser/ui/browser_command_controller.cc

Index: chrome/browser/ui/browser_command_controller.cc
diff --git a/chrome/browser/ui/browser_command_controller.cc b/chrome/browser/ui/browser_command_controller.cc
index e917e1714c823428dc008522b8c9da25e9a191f0..cef93e60e293a39afbe40f3455211676932cbb48 100644
--- a/chrome/browser/ui/browser_command_controller.cc
+++ b/chrome/browser/ui/browser_command_controller.cc
@@ -646,6 +646,13 @@ void BrowserCommandController::ExecuteCommandWithDisposition(
       RouteMedia(browser_);
       break;
 

[Robert Sesek, 2017/05/16 19:47:41]

nit: remove blank line (not present between other cases)

[Elly Fong-Jones, 2017/05/17 17:56:16]

Done.

+    case IDC_WINDOW_MUTE_TAB:
+      MuteTab(browser_);
+      break;
+    case IDC_WINDOW_PIN_TAB:
+      PinTab(browser_);
+      break;
+
     default:
       LOG(WARNING) << "Received Unimplemented Command: " << id;
       break;
@@ -843,6 +850,9 @@ void BrowserCommandController::InitCommandState() {
       IDC_DISTILL_PAGE, base::CommandLine::ForCurrentProcess()->HasSwitch(
                             switches::kEnableDomDistiller));
 
+  command_updater_.UpdateCommandEnabled(IDC_WINDOW_MUTE_TAB, normal_window);
+  command_updater_.UpdateCommandEnabled(IDC_WINDOW_PIN_TAB, normal_window);
+
   // Initialize other commands whose state changes based on various conditions.
   UpdateCommandsForFullscreenMode();
   UpdateCommandsForContentRestrictionState();
@@ -918,6 +928,10 @@ void BrowserCommandController::UpdateCommandsForTabState() {
   // Window management commands
   command_updater_.UpdateCommandEnabled(IDC_DUPLICATE_TAB,
       !browser_->is_app() && CanDuplicateTab(browser_));
+  command_updater_.UpdateCommandEnabled(IDC_WINDOW_MUTE_TAB,
+                                        !browser_->is_app());
+  command_updater_.UpdateCommandEnabled(IDC_WINDOW_PIN_TAB,
+                                        !browser_->is_app());
 
   // Page-related commands
   window()->SetStarredState(