Add PaintCanvas::drawDisplayItemList

cc/paint/skia_paint_canvas.cc

Index: cc/paint/skia_paint_canvas.cc
diff --git a/cc/paint/skia_paint_canvas.cc b/cc/paint/skia_paint_canvas.cc
index 5928cecc78f5286773b8f5eb6770bf12cb2bd7f6..5a1c082529ac309f8e32c864d860e1b68820a2fa 100644
--- a/cc/paint/skia_paint_canvas.cc
+++ b/cc/paint/skia_paint_canvas.cc
@@ -5,6 +5,7 @@
 #include "cc/paint/paint_canvas.h"
 
 #include "base/memory/ptr_util.h"
+#include "cc/paint/display_item_list.h"
 #include "cc/paint/paint_record.h"
 #include "cc/paint/paint_recorder.h"
 #include "third_party/skia/include/core/SkAnnotation.h"
@@ -287,6 +288,15 @@ void SkiaPaintCanvas::drawTextBlob(const sk_sp<SkTextBlob>& blob,
   canvas_->drawTextBlob(blob, x, y, ToSkPaint(flags));
 }
 
+void SkiaPaintCanvas::drawDisplayItemList(
+    const SkRect& bounds,
+    const DisplayItemList* display_item_list) {
+  SkPictureRecorder recorder;
+  SkCanvas* canvas = recorder.beginRecording(bounds);
+  display_item_list->Raster(canvas, nullptr);
+  canvas_->drawPicture(recorder.finishRecordingAsPicture(0));

[enne (OOO), 2017/03/20 18:10:39]

(0) => ()

[chrishtr, 2017/03/20 18:15:22]

Done.

+}
+
 void SkiaPaintCanvas::drawPicture(const PaintRecord* record) {
   canvas_->drawPicture(ToSkPicture(record));
 }