No need to kClear_Mode a layer right after its created, as that will automatically

chrome/browser/ui/views/infobars/translate_infobar_base.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/infobars/translate_infobar_base.h"
 
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/infobars/infobar.h"
 #include "chrome/browser/infobars/infobar_tab_helper.h"
 #include "chrome/browser/translate/translate_infobar_delegate.h"
@@ skipping 98 matching lines @@
 const views::Background& TranslateInfoBarBase::GetBackground() {
   return GetDelegate()->IsError() ? error_background_ : *background();
 }
 
 void TranslateInfoBarBase::FadeBackground(gfx::Canvas* canvas,
                                           double animation_value,
                                           const views::Background& background) {
   // Draw the background into an offscreen buffer with alpha value per animation
   // value, then blend it back into the current canvas.
   canvas->SaveLayerAlpha(static_cast<int>(animation_value * 255));
-  canvas->sk_canvas()->drawARGB(0, 255, 255, 255, SkXfermode::kClear_Mode);
   background.Paint(canvas, this);
   canvas->Restore();
 }