Allow CanvasSkia to bind to an existing SkCanvas.

chrome/browser/ui/views/tabs/dragged_tab_view.cc

Index: chrome/browser/ui/views/tabs/dragged_tab_view.cc
diff --git a/chrome/browser/ui/views/tabs/dragged_tab_view.cc b/chrome/browser/ui/views/tabs/dragged_tab_view.cc
index 4958632250d671a4e2904c3b4dcc327e6cc34384..995a0614de722453e70ca8ba58d33adaea807cd4 100644
--- a/chrome/browser/ui/views/tabs/dragged_tab_view.cc
+++ b/chrome/browser/ui/views/tabs/dragged_tab_view.cc
@@ -137,7 +137,7 @@ void DraggedTabView::PaintDetachedView(gfx::Canvas* canvas) {
   gfx::Size ps = GetPreferredSize();
   gfx::CanvasSkia scale_canvas(ps.width(), ps.height(), false);
   SkBitmap& bitmap_device = const_cast<SkBitmap&>(
-      skia::GetTopDevice(scale_canvas)->accessBitmap(true));
+      skia::GetTopDevice(*scale_canvas.sk_canvas())->accessBitmap(true));
   bitmap_device.eraseARGB(0, 0, 0, 0);
 
   int tab_height = renderer_bounds_.back().height();
@@ -178,7 +178,7 @@ void DraggedTabView::PaintDetachedView(gfx::Canvas* canvas) {
   rc.fTop = 0;
   rc.fRight = SkIntToScalar(ps.width());
   rc.fBottom = SkIntToScalar(ps.height());
-  canvas->AsCanvasSkia()->drawRect(rc, paint);
+  canvas->GetSkCanvas()->drawRect(rc, paint);
 }
 
 void DraggedTabView::PaintFocusRect(gfx::Canvas* canvas) {