Animate showing / hiding the location bar for bookmark apps.

chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.mm

 // Copyright 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.
 
 #import "chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
 #include "base/prefs/pref_service.h"
@@ skipping 184 matching lines @@
   Layout();
 
   [field_ updateMouseTracking];
   [field_ setNeedsDisplay:YES];
 }
 
 void LocationBarViewMac::UpdateBookmarkStarVisibility() {
   star_decoration_->SetVisible(IsStarEnabled());
 }
 
+void LocationBarViewMac::UpdateLocationBarVisibility(bool visible,
+                                                     bool animate) {
+  // Not implemented on Mac.
+}
+
 bool LocationBarViewMac::ShowPageActionPopup(
     const extensions::Extension* extension, bool grant_active_tab) {
   for (ScopedVector<PageActionDecoration>::iterator iter =
            page_action_decorations_.begin();
        iter != page_action_decorations_.end(); ++iter) {
     if ((*iter)->GetExtension() == extension)
       return (*iter)->ActivatePageAction(grant_active_tab);
   }
   return false;
 }
@@ skipping 509 matching lines @@
 }
 
 bool LocationBarViewMac::UpdateMicSearchDecorationVisibility() {
   bool is_visible = !GetToolbarModel()->input_in_progress() &&
                     browser_->search_model()->voice_search_supported();
   if (mic_search_decoration_->IsVisible() == is_visible)
     return false;
   mic_search_decoration_->SetVisible(is_visible);
   return true;
 }