Use union type in ImageBitmapFactories.idl

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

-// Copyright 2015 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 "config.h"
-#include "core/frame/ImageBitmap.h"
-
-#include "bindings/core/v8/UnionTypesCore.h"
-#include "core/dom/Document.h"
-#include "core/fetch/MemoryCache.h"
-#include "core/html/HTMLCanvasElement.h"
-#include "modules/canvas2d/CanvasRenderingContext2D.h"
-#include "platform/heap/Handle.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace blink {
-
-class ImageBitmapModuleTest : public ::testing::Test {
-protected:
-    virtual void SetUp()
-    {
-        // Save the global memory cache to restore it upon teardown.
-        m_globalMemoryCache = replaceMemoryCacheForTesting(MemoryCache::create());
-    }
-    virtual void TearDown()
-    {
-        // Garbage collection is required prior to switching out the
-        // test's memory cache; image resources are released, evicting
-        // them from the cache.
-        Heap::collectGarbage(BlinkGC::NoHeapPointersOnStack, BlinkGC::GCWithSweep, BlinkGC::ForcedGC);
-
-        replaceMemoryCacheForTesting(m_globalMemoryCache.release());
-    }
-
-    Persistent<MemoryCache> m_globalMemoryCache;
-};
-
-// Verifies that ImageBitmaps constructed from ImageBitmaps hold onto their own Image.
-TEST_F(ImageBitmapModuleTest, ImageResourceLifetime)
-{
-    RefPtrWillBeRawPtr<HTMLCanvasElement> canvasElement = HTMLCanvasElement::create(*Document::create().get());
-    canvasElement->setHeight(40);
-    canvasElement->setWidth(40);
-    RefPtrWillBeRawPtr<ImageBitmap> imageBitmapDerived = nullptr;
-    {
-        RefPtrWillBeRawPtr<ImageBitmap> imageBitmapFromCanvas = ImageBitmap::create(canvasElement.get(), IntRect(0, 0, canvasElement->width(), canvasElement->height()));
-        imageBitmapDerived = ImageBitmap::create(imageBitmapFromCanvas.get(), IntRect(0, 0, 20, 20));
-    }
-    CanvasContextCreationAttributes attributes;
-    CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(canvasElement->getCanvasRenderingContext("2d", attributes));
-    TrackExceptionState exceptionState;
-    CanvasImageSourceUnion imageSource;
-    imageSource.setImageBitmap(imageBitmapDerived);
-    context->drawImage(imageSource, 0, 0, exceptionState);
-}
-
-} // namespace