Allow CanvasSkia to bind to an existing SkCanvas.

views/controls/table/native_table_win.cc

Index: views/controls/table/native_table_win.cc
diff --git a/views/controls/table/native_table_win.cc b/views/controls/table/native_table_win.cc
index 6f8472cceb61c7893b4de6098230aebeec382b53..91d46c996b4347892717c183df5fa0aeb12115b7 100644
--- a/views/controls/table/native_table_win.cc
+++ b/views/controls/table/native_table_win.cc
@@ -395,7 +395,7 @@ void NativeTableWin::CreateNativeControl() {
     // rect does not include the icon).
     gfx::CanvasSkia canvas(kImageSize, kImageSize, false);
     // Make the background completely transparent.
-    canvas.drawColor(SK_ColorBLACK, SkXfermode::kClear_Mode);
+    canvas.sk_canvas()->drawColor(SK_ColorBLACK, SkXfermode::kClear_Mode);
     {
       base::win::ScopedHICON empty_icon(
           IconUtil::CreateHICONFromSkBitmap(canvas.ExtractBitmap()));
@@ -533,7 +533,7 @@ LRESULT NativeTableWin::OnCustomDraw(NMLVCUSTOMDRAW* draw_info) {
               // NOTE: This may be invoked without the ListView filling in the
               // background (or rather windows paints background, then invokes
               // this twice). As such, we always fill in the background.
-              canvas.drawColor(
+              canvas.sk_canvas()->drawColor(
                   skia::COLORREFToSkColor(GetSysColor(bg_color_index)),
                   SkXfermode::kSrc_Mode);
               // + 1 for padding (we declared the image as 18x18 in the list-
@@ -551,9 +551,9 @@ LRESULT NativeTableWin::OnCustomDraw(NMLVCUSTOMDRAW* draw_info) {
                               (intersection.right - intersection.left);
               to_draw.bottom = to_draw.top +
                               (intersection.bottom - intersection.top);
-              skia::DrawToNativeContext(&canvas, draw_info->nmcd.hdc,
-                                       intersection.left, intersection.top,
-                                       &to_draw);
+              skia::DrawToNativeContext(canvas.sk_canvas(), draw_info->nmcd.hdc,
+                                        intersection.left, intersection.top,
+                                        &to_draw);
               r = CDRF_SKIPDEFAULT;
             }
           }