Implement ImageBitmapOptions resize

third_party/WebKit/Source/core/frame/ImageBitmapTest.cpp

 /*
  * 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 66 matching lines @@
     Persistent<MemoryCache> m_globalMemoryCache;
 };
 
 TEST_F(ImageBitmapTest, ImageResourceConsistency)
 {
     const ImageBitmapOptions defaultOptions;
     HTMLImageElement* imageElement = HTMLImageElement::create(*Document::create());
     ImageResource* image = ImageResource::create(StaticBitmapImage::create(m_image).get());
     imageElement->setImageResource(image);
 
+    Optional<IntRect> cropRect = IntRect(0, 0, m_image->width(), m_image->height());
     ImageBitmap* imageBitmapNoCrop = ImageBitmap::create(imageElement,
-        IntRect(0, 0, m_image->width(), m_image->height()),
-        &(imageElement->document()), defaultOptions);
+        cropRect, &(imageElement->document()), defaultOptions);
+    cropRect = IntRect(m_image->width() / 2, m_image->height() / 2, m_image->width() / 2, m_image->height() / 2);
     ImageBitmap* imageBitmapInteriorCrop = ImageBitmap::create(imageElement,
-        IntRect(m_image->width() / 2, m_image->height() / 2, m_image->width() / 2, m_image->height() / 2),
-        &(imageElement->document()), defaultOptions);
+        cropRect, &(imageElement->document()), defaultOptions);
+    cropRect = IntRect(-m_image->width() / 2, -m_image->height() / 2, m_image->width(), m_image->height());
     ImageBitmap* imageBitmapExteriorCrop = ImageBitmap::create(imageElement,
-        IntRect(-m_image->width() / 2, -m_image->height() / 2, m_image->width(), m_image->height()),
-        &(imageElement->document()), defaultOptions);
+        cropRect, &(imageElement->document()), defaultOptions);
+    cropRect = IntRect(-m_image->width(), -m_image->height(), m_image->width(), m_image->height());
     ImageBitmap* imageBitmapOutsideCrop = ImageBitmap::create(imageElement,
-        IntRect(-m_image->width(), -m_image->height(), m_image->width(), m_image->height()),
-        &(imageElement->document()), defaultOptions);
+        cropRect, &(imageElement->document()), defaultOptions);
 
     ASSERT_EQ(imageBitmapNoCrop->bitmapImage()->imageForCurrentFrame(), imageElement->cachedImage()->getImage()->imageForCurrentFrame());
     ASSERT_NE(imageBitmapInteriorCrop->bitmapImage()->imageForCurrentFrame(), imageElement->cachedImage()->getImage()->imageForCurrentFrame());
     ASSERT_NE(imageBitmapExteriorCrop->bitmapImage()->imageForCurrentFrame(), imageElement->cachedImage()->getImage()->imageForCurrentFrame());
 
     StaticBitmapImage* emptyImage = imageBitmapOutsideCrop->bitmapImage();
     ASSERT_NE(emptyImage->imageForCurrentFrame(), imageElement->cachedImage()->getImage()->imageForCurrentFrame());
 }
 
 // Verifies that ImageBitmaps constructed from HTMLImageElements hold a reference to the original Image if the HTMLImageElement src is changed.
 TEST_F(ImageBitmapTest, ImageBitmapSourceChanged)
 {
     HTMLImageElement* image = HTMLImageElement::create(*Document::create());
     ImageResource* originalImageResource = ImageResource::create(
         StaticBitmapImage::create(m_image).get());
     image->setImageResource(originalImageResource);
 
     const ImageBitmapOptions defaultOptions;
+    Optional<IntRect> cropRect = IntRect(0, 0, m_image->width(), m_image->height());
     ImageBitmap* imageBitmap = ImageBitmap::create(image,
-        IntRect(0, 0, m_image->width(), m_image->height()),
-        &(image->document()), defaultOptions);
+        cropRect, &(image->document()), defaultOptions);
     ASSERT_EQ(imageBitmap->bitmapImage()->imageForCurrentFrame(), originalImageResource->getImage()->imageForCurrentFrame());
 
     ImageResource* newImageResource = ImageResource::create(
         StaticBitmapImage::create(m_image2).get());
     image->setImageResource(newImageResource);
 
     // The ImageBitmap should contain the same data as the original cached image
     {
         ASSERT_EQ(imageBitmap->bitmapImage()->imageForCurrentFrame(), originalImageResource->getImage()->imageForCurrentFrame());
         SkImage* image1 = imageBitmap->bitmapImage()->imageForCurrentFrame().get();
         ASSERT_NE(image1, nullptr);
         SkImage* image2 = originalImageResource->getImage()->imageForCurrentFrame().get();
         ASSERT_NE(image2, nullptr);
         ASSERT_EQ(image1, image2);
     }
 
     {
         ASSERT_NE(imageBitmap->bitmapImage()->imageForCurrentFrame(), newImageResource->getImage()->imageForCurrentFrame());
         SkImage* image1 = imageBitmap->bitmapImage()->imageForCurrentFrame().get();
         ASSERT_NE(image1, nullptr);
         SkImage* image2 = newImageResource->getImage()->imageForCurrentFrame().get();
         ASSERT_NE(image2, nullptr);
         ASSERT_NE(image1, image2);
     }
 }
 
 } // namespace blink