STASH: Epic Experimental patch for toolkit-views App List on Mac

ui/app_list/views/app_list_view.cc

 // 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 "ui/app_list/views/app_list_view.h"
 
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
@@ skipping 56 matching lines @@
 
 // Determines whether the current environment supports shadows bubble borders.
 bool SupportsShadow() {
 #if defined(OS_WIN)
   // Shadows are not supported on Windows without Aero Glass.
   if (!ui::win::IsAeroGlassEnabled() ||
       CommandLine::ForCurrentProcess()->HasSwitch(
           ::switches::kDisableDwmComposition)) {
     return false;
   }
-#elif defined(OS_LINUX) && !defined(OS_CHROMEOS)
+#elif defined(OS_LINUX) && !defined(OS_CHROMEOS) // || defined(OS_MACOSX)
   // Shadows are not supported on (non-ChromeOS) Linux.
   return false;
 #endif
   return true;
 }
 
 // The background for the App List overlay, which appears as a white rounded
 // rectangle with the given radius and the same size as the target view.
 class AppListOverlayBackground : public views::Background {
  public:
@@ skipping 507 matching lines @@
       speech_view_->layer()->SetTransform(speech_transform);
   }
 
   if (will_appear)
     speech_view_->SetVisible(true);
   else
     app_list_main_view_->SetVisible(true);
 }
 
 }  // namespace app_list