content/aura: Use a PaintRecorder to access the Canvas for painting.

content/browser/web_contents/aura/shadow_layer_delegate.cc

 // Copyright (c) 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 "content/browser/web_contents/aura/shadow_layer_delegate.h"
 
 #include "base/bind.h"
 #include "third_party/skia/include/effects/SkGradientShader.h"
 #include "ui/aura/window.h"
 #include "ui/compositor/layer.h"
-#include "ui/compositor/paint_context.h"
+#include "ui/compositor/paint_recorder.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/skia_util.h"
 
 namespace {
 
 const SkColor kShadowLightColor = SkColorSetARGB(0x0, 0, 0, 0);
 const SkColor kShadowDarkColor = SkColorSetARGB(0x70, 0, 0, 0);
 const int kShadowThick = 7;
 
 }  // namespace
@@ skipping 20 matching lines @@
   points[1].iset(kShadowThick, 0);
 
   skia::RefPtr<SkShader> shader = skia::AdoptRef(
       SkGradientShader::CreateLinear(points, kShadowColors, NULL,
           arraysize(points), SkShader::kRepeat_TileMode));
 
   gfx::Rect paint_rect = gfx::Rect(0, 0, kShadowThick,
                                    layer_->bounds().height());
   SkPaint paint;
   paint.setShader(shader.get());
-  context.canvas()->sk_canvas()->drawRect(gfx::RectToSkRect(paint_rect), paint);
+  ui::PaintRecorder recorder(context);
+  recorder.canvas()->sk_canvas()->drawRect(gfx::RectToSkRect(paint_rect),
+                                           paint);

[sadrul, 2015/04/07 21:12:15]

I wonder if there's a reason this doesn't use canvas()->DrawRect() instead.

[danakj, 2015/04/07 21:13:25]

Oh. I didn't even read that, I agree, and I'll switch it in another CL.

 }
 
 void ShadowLayerDelegate::OnDelegatedFrameDamage(
     const gfx::Rect& damage_rect_in_dip) {
 }
 
 void ShadowLayerDelegate::OnDeviceScaleFactorChanged(float scale_factor) {
 }
 
 base::Closure ShadowLayerDelegate::PrepareForLayerBoundsChange() {
   return base::Bind(&base::DoNothing);
 }
 
 }  // namespace content