views: Access the Canvas through recorders not through PaintContext.

chrome/browser/ui/views/autofill/card_unmask_prompt_views.cc

 // Copyright 2014 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/autofill/card_unmask_prompt_views.h"
 
 #include "base/basictypes.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/ui/autofill/autofill_dialog_types.h"
 #include "chrome/browser/ui/autofill/card_unmask_prompt_controller.h"
 #include "chrome/browser/ui/views/autofill/decorated_textfield.h"
 #include "chrome/browser/ui/views/autofill/tooltip_icon.h"
 #include "chrome/grit/generated_resources.h"
 #include "components/constrained_window/constrained_window_views.h"
 #include "components/web_modal/web_contents_modal_dialog_host.h"
 #include "components/web_modal/web_contents_modal_dialog_manager.h"
 #include "components/web_modal/web_contents_modal_dialog_manager_delegate.h"
 #include "grit/theme_resources.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
+#include "ui/compositor/compositing_recorder.h"
 #include "ui/compositor/paint_context.h"
 #include "ui/gfx/canvas.h"
 #include "ui/views/background.h"
 #include "ui/views/controls/button/checkbox.h"
 #include "ui/views/controls/combobox/combobox.h"
 #include "ui/views/controls/image_view.h"
 #include "ui/views/controls/label.h"
 #include "ui/views/controls/throbber.h"
 #include "ui/views/layout/box_layout.h"
 #include "ui/views/widget/widget.h"
@@ skipping 426 matching lines @@
     : fade_everything_(false), opacity_(1.0) {
 }
 CardUnmaskPromptViews::FadeOutView::~FadeOutView() {
 }
 
 void CardUnmaskPromptViews::FadeOutView::PaintChildren(
     const ui::PaintContext& context) {
   if (opacity_ > 0.99)
     return views::View::PaintChildren(context);
 
-  gfx::Canvas* canvas = context.canvas();
-  canvas->SaveLayerAlpha(0xff * opacity_);
+  ui::CompositingRecorder recorder(context, opacity_);
   views::View::PaintChildren(context);
-  canvas->Restore();
 }
 
 void CardUnmaskPromptViews::FadeOutView::OnPaint(gfx::Canvas* canvas) {
   if (!fade_everything_ || opacity_ > 0.99)
     return views::View::OnPaint(canvas);
 
   canvas->SaveLayerAlpha(0xff * opacity_);
   views::View::OnPaint(canvas);
   canvas->Restore();
 }
 
 void CardUnmaskPromptViews::FadeOutView::SetOpacity(double opacity) {
   opacity_ = opacity;
   SchedulePaint();
 }
 
 }  // namespace autofill