Remove ImageElementBase::SourceDefaultObjectSize

After https://chromium-review.googlesource.com/716679, this method has
no callers. Remove it.

Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
Change-Id: I3e2f427c8349bfa410718cd24782f64c7ad2e0e0
Reviewed-on: https://chromium-review.googlesource.com/735861Reviewed-by: Fernando Serboncini <fserb@chromium.org>
Commit-Queue: Fredrik Söderquist <fs@opera.com>
Cr-Commit-Position: refs/heads/master@{#539306}

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

@@ -818,8 +818,4 @@ void HTMLImageElement::AssociateWith(HTMLFormElement* form) {
   }
 };
 
-FloatSize HTMLImageElement::SourceDefaultObjectSize() {
-  return FloatSize(width(), height());
-}
-
 }  // namespace blink

third_party/WebKit/Source/core/html/HTMLImageElement.h

@@ -121,7 +121,6 @@ class CORE_EXPORT HTMLImageElement final
   bool IsCollapsed() const;
 
   // CanvasImageSource interface implementation.
-  FloatSize SourceDefaultObjectSize() override;
   FloatSize DefaultDestinationSize(const FloatSize&) const override;
 
   // public so that HTMLPictureElement can call this as well.

third_party/WebKit/Source/core/html/canvas/ImageElementBase.h

@@ -20,7 +20,6 @@ class CORE_EXPORT ImageElementBase : public CanvasImageSource,
                                      public ImageBitmapSource {
  public:
   virtual ImageLoader& GetImageLoader() const = 0;
-  virtual FloatSize SourceDefaultObjectSize() = 0;
 
   // Parses the given async parameter value into an ImageDecodingMode. This is
   // used by SVGImageElement and HTMLImageElement since this class is a common

third_party/WebKit/Source/core/svg/SVGImageElement.cpp

@@ -199,14 +199,6 @@ Node::InsertionNotificationRequest SVGImageElement::InsertedInto(
   return SVGGraphicsElement::InsertedInto(root_parent);
 }
 
-FloatSize SVGImageElement::SourceDefaultObjectSize() {
-  if (GetLayoutObject())
-    return ToLayoutSVGImage(GetLayoutObject())->ObjectBoundingBox().Size();
-  SVGLengthContext length_context(this);
-  return FloatSize(width_->CurrentValue()->Value(length_context),
-                   height_->CurrentValue()->Value(length_context));
-}
-
 const AtomicString SVGImageElement::ImageSourceURL() const {
   return AtomicString(HrefString());
 }

third_party/WebKit/Source/core/svg/SVGImageElement.h

@@ -92,7 +92,6 @@ class CORE_EXPORT SVGImageElement final
   bool SelfHasRelativeLengths() const override;
   void DidMoveToNewDocument(Document& old_document) override;
   SVGImageLoader& GetImageLoader() const override { return *image_loader_; }
-  FloatSize SourceDefaultObjectSize() override;
 
   Member<SVGAnimatedLength> x_;
   Member<SVGAnimatedLength> y_;