[Mac] Finish implementation of App Tabs.

chrome/browser/cocoa/browser_window_controller.mm

Index: chrome/browser/cocoa/browser_window_controller.mm
===================================================================
--- chrome/browser/cocoa/browser_window_controller.mm	(revision 52312)
+++ chrome/browser/cocoa/browser_window_controller.mm	(working copy)
@@ -793,7 +793,7 @@
 }
 
 // Update a toggle state for an NSMenuItem if modified.
-// Take care to insure |item| looks like a NSMenuItem.
+// Take care to ensure |item| looks like a NSMenuItem.
 // Called by validateUserInterfaceItem:.
 - (void)updateToggleStateWithTag:(NSInteger)tag forItem:(id)item {
   if (![item respondsToSelector:@selector(state)] ||
@@ -1633,18 +1633,6 @@
   return browser_->tabstrip_model()->delegate()->UseVerticalTabs();
 }
 
-- (void)setToolbarCollapsedMode:(BOOL)collapsed {
-  if (toolbarCollapsed_ == collapsed)
-    return;
-
-  static_cast<LocationBarViewMac*>([self locationBarBridge])->
-      SetEditable(!collapsed);
-
-  // TODO(andybons): Actually hide toolbar if collapsed.
-
-  toolbarCollapsed_ = collapsed;
-}
-
 - (void)sheetDidEnd:(NSWindow*)sheet
          returnCode:(NSInteger)code
             context:(void*)context {