Update SetPaintToLayer to accept LayerType

chrome/browser/ui/views/tabs/tab.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 "chrome/browser/ui/views/tabs/tab.h"
 
 #include <stddef.h>
 #include <limits>
 #include <utility>
 
@@ skipping 1440 matching lines @@
     throbber_->ResetStartTimes();
     throbber_->SetVisible(false);
     ScheduleIconPaint();
     return;
   }
 
   // Since the throbber can animate for a long time, paint to a separate layer
   // when possible to reduce repaint overhead.
   const bool paint_to_layer = controller_->CanPaintThrobberToLayer();
   if (paint_to_layer != !!throbber_->layer()) {
-    throbber_->SetPaintToLayer(paint_to_layer);
     if (paint_to_layer) {
+      throbber_->SetPaintToLayer();
       throbber_->layer()->SetFillsBoundsOpaquely(false);
       ScheduleIconPaint();  // Ensure the non-layered throbber goes away.
+    } else {
+      throbber_->DestroyLayer();
     }
   }
   if (!throbber_->visible()) {
     ScheduleIconPaint();  // Repaint the icon area to hide the favicon.
     throbber_->SetVisible(true);
   }
   throbber_->SchedulePaint();
 }
 
 int Tab::IconCapacity() const {
@@ skipping 107 matching lines @@
   SchedulePaintInRect(bounds);
 }
 
 gfx::Rect Tab::GetImmersiveBarRect() const {
   // The main bar is as wide as the normal tab's horizontal top line.
   gfx::Rect contents = GetContentsBounds();
   contents.set_y(0);
   contents.set_height(kImmersiveBarHeight);
   return contents;
 }