Change Painter factory functions to unique_ptr

ui/views/corewm/tooltip_aura.cc

 // Copyright 2013 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/views/corewm/tooltip_aura.h"
 
 #include "base/macros.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "ui/aura/window.h"
@@ skipping 108 matching lines @@
   void SetForegroundColor(SkColor color) {
     render_text_->SetColor(color);
   }
 
   void SetBackgroundColor(SkColor background_color) {
     // Corner radius of tooltip background.
     const float kTooltipCornerRadius = 2.f;
     views::Background* background =
         CanUseTranslucentTooltipWidget()
             ? views::Background::CreateBackgroundPainter(
-                  true, views::Painter::CreateSolidRoundRectPainter(
-                            background_color, kTooltipCornerRadius))
+                  views::Painter::CreateSolidRoundRectPainter(
+                      background_color, kTooltipCornerRadius))
             : views::Background::CreateSolidBackground(background_color);
     set_background(background);
     // Force the text color to be readable when |background_color| is not
     // opaque.
     render_text_->set_subpixel_rendering_suppressed(
         SkColorGetA(background_color) != 0xFF);
   }
 
   void SetMaxWidth(int width) {
     max_width_ = width;
@@ skipping 104 matching lines @@
 }
 
 void TooltipAura::OnWidgetDestroying(views::Widget* widget) {
   DCHECK_EQ(widget_, widget);
   widget_ = NULL;
   tooltip_window_ = NULL;
 }
 
 }  // namespace corewm
 }  // namespace views