Support canvas size as default object size

third_party/WebKit/Source/core/html/HTMLCanvasElement.cpp

 /*
  * Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alp Toker <alp@atoker.com>
  * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. 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 406 matching lines @@
 
     bool listenerNeedsNewFrameCapture = false;
     for (const CanvasDrawListener* listener : m_listeners) {
         if (listener->needsNewFrame()) {
             listenerNeedsNewFrameCapture = true;
         }
     }
 
     if (listenerNeedsNewFrameCapture) {
         SourceImageStatus status;
-        RefPtr<Image> sourceImage = getSourceImageForCanvas(&status, PreferNoAcceleration, SnapshotReasonCanvasListenerCapture);
+        RefPtr<Image> sourceImage = getSourceImageForCanvas(&status, PreferNoAcceleration, SnapshotReasonCanvasListenerCapture, FloatSize());
         if (status != NormalSourceImageStatus)
             return;
         RefPtr<SkImage> image = sourceImage->imageForCurrentFrame();
         for (CanvasDrawListener* listener : m_listeners) {
             if (listener->needsNewFrame()) {
                 listener->sendNewFrame(image);
             }
         }
     }
 
@@ skipping 524 matching lines @@
     if (m_context)
         m_context->styleDidChange(oldStyle, newStyle);
 }
 
 void HTMLCanvasElement::didMoveToNewDocument(Document& oldDocument)
 {
     setObservedDocument(document());
     HTMLElement::didMoveToNewDocument(oldDocument);
 }
 
-PassRefPtr<Image> HTMLCanvasElement::getSourceImageForCanvas(SourceImageStatus* status, AccelerationHint hint, SnapshotReason reason) const
+PassRefPtr<Image> HTMLCanvasElement::getSourceImageForCanvas(SourceImageStatus* status, AccelerationHint hint, SnapshotReason reason, const FloatSize&) const
 {
     if (!width() || !height()) {
         *status = ZeroSizeCanvasSourceImageStatus;
         return nullptr;
     }
 
     if (!isPaintable()) {
         *status = InvalidSourceImageStatus;
         return nullptr;
     }
@@ skipping 15 matching lines @@
 
     *status = InvalidSourceImageStatus;
     return nullptr;
 }
 
 bool HTMLCanvasElement::wouldTaintOrigin(SecurityOrigin*) const
 {
     return !originClean();
 }
 
-FloatSize HTMLCanvasElement::elementSize() const
+FloatSize HTMLCanvasElement::elementSize(const FloatSize&) const
 {
     return FloatSize(width(), height());
 }
 
 IntSize HTMLCanvasElement::bitmapSourceSize() const
 {
     return IntSize(width(), height());
 }
 
 ScriptPromise HTMLCanvasElement::createImageBitmap(ScriptState* scriptState, EventTarget& eventTarget, int sx, int sy, int sw, int sh, const ImageBitmapOptions& options, ExceptionState& exceptionState)
@@ skipping 63 matching lines @@
         || element.hasTagName(HTMLNames::tfootTag)
         || element.hasTagName(HTMLNames::trTag)
         || element.hasTagName(HTMLNames::tdTag)
         || element.hasTagName(HTMLNames::thTag))
         return true;
 
     return false;
 }
 
 } // namespace blink