Cache display items from SVGImage contents.

third_party/WebKit/Source/core/svg/graphics/SVGImage.cpp

 /*
  * Copyright (C) 2006 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. 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.
@@ skipping 44 matching lines @@
 #include "platform/graphics/paint/CullRect.h"
 #include "platform/graphics/paint/DrawingRecorder.h"
 #include "platform/graphics/paint/SkPictureBuilder.h"
 #include "platform/tracing/TraceEvent.h"
 #include "third_party/skia/include/core/SkPicture.h"
 #include "wtf/PassRefPtr.h"
 
 namespace blink {
 
 SVGImage::SVGImage(ImageObserver* observer)
-    : Image(observer), m_hasPendingTimelineRewind(false) {}
+    : Image(observer),
+      m_paintController(PaintController::create()),
+      m_hasPendingTimelineRewind(false) {}
 
 SVGImage::~SVGImage() {
   if (m_page) {
     // Store m_page in a local variable, clearing m_page, so that
     // SVGImageChromeClient knows we're destructed.
     Page* currentPage = m_page.release();
     // Break both the loader and view references to the frame
     currentPage->willBeDestroyed();
   }
 
@@ skipping 286 matching lines @@
   // Always call processUrlFragment, even if the url is empty, because
   // there may have been a previous url/fragment that needs to be reset.
   view->processUrlFragment(url);
 
   // If the image was reset, we need to rewind the timeline back to 0. This
   // needs to be done before painting, or else we wouldn't get the correct
   // reset semantics (we'd paint the "last" frame rather than the one at
   // time=0.) The reason we do this here and not in resetAnimation() is to
   // avoid setting timers from the latter.
   flushPendingTimelineRewind();
-
-  SkPictureBuilder imagePicture(dstRect);
+  SkPictureBuilder imagePicture(dstRect, nullptr, nullptr,
+                                m_paintController.get());
   {
     ClipRecorder clipRecorder(imagePicture.context(), imagePicture,
                               DisplayItem::kClipNodeImage,
                               enclosingIntRect(dstRect));
 
     // We can only draw the entire frame, clipped to the rect we want. So
     // compute where the top left of the image would be if we were drawing
     // without clipping, and translate accordingly.
     FloatSize scale(dstRect.width() / srcRect.width(),
                     dstRect.height() / srcRect.height());
@@ skipping 231 matching lines @@
   }
 
   return m_page ? SizeAvailable : SizeUnavailable;
 }
 
 String SVGImage::filenameExtension() const {
   return "svg";
 }
 
 }  // namespace blink