[Experimental] Supporting OOPIF printing

third_party/WebKit/Source/platform/graphics/GraphicsContext.cpp

 /*
  * Copyright (C) 2003, 2004, 2005, 2006, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 282 matching lines @@
                         (createEmptyPaintRecord()));
     return emptyPaintRecord;
   }
 
   sk_sp<PaintRecord> record = m_paintRecorder.finishRecordingAsPicture();
   m_canvas = nullptr;
   DCHECK(record);
   return record;
 }
 
+sk_sp<SkDrawable> GraphicsContext::endRecordingAsDrawable() {
+  if (contextDisabled()) {
+    return nullptr;
+  }
+
+  sk_sp<SkDrawable> drawable = m_paintRecorder.finishRecordingAsDrawable();
+  m_canvas = nullptr;
+  DCHECK(drawable);
+  return drawable;
+}
+
 void GraphicsContext::drawRecord(const PaintRecord* record) {
   if (contextDisabled() || !record || record->cullRect().isEmpty())
     return;
 
   DCHECK(m_canvas);
   m_canvas->drawPicture(record);
 }
 
+void GraphicsContext::drawDrawable(const SkDrawable* drawable) {
+  if (contextDisabled() || !drawable)
+    return;
+
+  DCHECK(m_canvas);
+  m_canvas->drawDrawable((SkDrawable*)drawable, nullptr);
+}
+
 void GraphicsContext::compositeRecord(sk_sp<PaintRecord> record,
                                       const FloatRect& dest,
                                       const FloatRect& src,
                                       SkBlendMode op) {
   if (contextDisabled() || !record)
     return;
   DCHECK(m_canvas);
 
   PaintFlags flags;
   flags.setBlendMode(op);
@@ skipping 1018 matching lines @@
       break;
     default:
       NOTREACHED();
       break;
   }
 
   return nullptr;
 }
 
 }  // namespace blink