Make CanvasPainter raster directly to an SkBitmap

ui/views/cocoa/bridged_content_view.mm

 // 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.
 
 #import "ui/views/cocoa/bridged_content_view.h"
 
 #include "base/logging.h"
 #import "base/mac/mac_util.h"
 #import "base/mac/scoped_nsobject.h"
 #import "base/mac/sdk_forward_declarations.h"
@@ skipping 714 matching lines @@
     // by windowMask_.
     [outerPath fill];
     // Regerate drop shadow around the window boundary.
     [[self window] invalidateShadow];
   }
 
   // If there's a layer, painting occurs in BridgedNativeWidget::OnPaintLayer().
   if (hostedView_->GetWidget()->GetLayer())
     return;
 
-  gfx::CanvasSkiaPaint canvas(dirtyRect, false /* opaque */);
-  hostedView_->GetWidget()->OnNativeWidgetPaint(
-      ui::CanvasPainter(&canvas, 1.f).context());
+  // TODO(tapted): Add a NOTREACHED() here.  At the moment, low-level
+  // BridgedNativeWidget unit tests may not have a ui::Layer.
 }
 
 - (BOOL)isOpaque {
   if (!hostedView_)
     return NO;
 
   ui::Layer* layer = hostedView_->GetWidget()->GetLayer();
   return layer && layer->fills_bounds_opaquely();
 }
 
@@ skipping 741 matching lines @@
   return [hostedView_->GetNativeViewAccessible() accessibilityHitTest:point];
 }
 
 - (id)accessibilityFocusedUIElement {
   if (!hostedView_)
     return nil;
   return [hostedView_->GetNativeViewAccessible() accessibilityFocusedUIElement];
 }
 
 @end