Notify listeners on bitmaprenderer context changes

third_party/WebKit/Source/modules/imagebitmap/ImageBitmapRenderingContext.cpp

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "modules/imagebitmap/ImageBitmapRenderingContext.h"
 
 #include "bindings/modules/v8/RenderingContext.h"
 #include "core/frame/ImageBitmap.h"
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/StaticBitmapImage.h"
@@ skipping 44 matching lines @@
     sk_sp<SkSurface> surface =
         SkSurface::MakeRasterN32Premul(skImage->width(), skImage->height());
     if (!surface) {
       // silent failure
       m_image.clear();
       return;
     }
     surface->getCanvas()->drawImage(skImage, 0, 0);
     m_image = StaticBitmapImage::create(surface->makeImageSnapshot());
   }
-  canvas()->didDraw(
-      FloatRect(FloatPoint(), FloatSize(m_image->width(), m_image->height())));
+  didDraw(skImage->bounds());
   imageBitmap->close();
 }
 
 bool ImageBitmapRenderingContext::paint(GraphicsContext& gc, const IntRect& r) {
   if (!m_image)
     return true;
 
   // With impl-side painting, it is unsafe to use a gpu-backed SkImage
   DCHECK(
       !m_image->imageForCurrentFrame(ColorBehavior::transformToGlobalTarget())
@@ skipping 12 matching lines @@
   if (!RuntimeEnabledFeatures::experimentalCanvasFeaturesEnabled())
     return nullptr;
   return new ImageBitmapRenderingContext(canvas, attrs, document);
 }
 
 void ImageBitmapRenderingContext::stop() {
   m_image.clear();
 }
 
 }  // blink