Add a origin clean flag in ImageBitmap class

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

Index: third_party/WebKit/Source/core/frame/ImageBitmap.cpp
diff --git a/third_party/WebKit/Source/core/frame/ImageBitmap.cpp b/third_party/WebKit/Source/core/frame/ImageBitmap.cpp
index 4c125cbc7f246cfec5f5c2638225402edbaee884..51db3cbd6de58e5ee1b7222594a4cad037315451 100644
--- a/third_party/WebKit/Source/core/frame/ImageBitmap.cpp
+++ b/third_party/WebKit/Source/core/frame/ImageBitmap.cpp
@@ -46,12 +46,13 @@ static PassRefPtr<StaticBitmapImage> cropImage(Image* image, const IntRect& crop
     return StaticBitmapImage::create(adoptRef(surface->newImageSnapshot()));
 }
 
-ImageBitmap::ImageBitmap(HTMLImageElement* image, const IntRect& cropRect)
+ImageBitmap::ImageBitmap(HTMLImageElement* image, const IntRect& cropRect, bool originCleanFlag)
 {
+    m_isOriginClean = originCleanFlag;
     m_image = cropImage(image->cachedImage()->image(), cropRect);
 }
 
-ImageBitmap::ImageBitmap(HTMLVideoElement* video, const IntRect& cropRect)
+ImageBitmap::ImageBitmap(HTMLVideoElement* video, const IntRect& cropRect, bool originCleanFlag)
 {
     IntSize playerSize;
     if (video->webMediaPlayer())
@@ -65,6 +66,7 @@ ImageBitmap::ImageBitmap(HTMLVideoElement* video, const IntRect& cropRect)
 
     IntPoint dstPoint = IntPoint(std::max(0, -cropRect.x()), std::max(0, -cropRect.y()));
     video->paintCurrentFrame(buffer->canvas(), IntRect(dstPoint, srcRect.size()), nullptr);
+    m_isOriginClean = originCleanFlag;
     m_image = StaticBitmapImage::create(buffer->newSkImageSnapshot(PreferNoAcceleration));
 }
 
@@ -122,16 +124,16 @@ ImageBitmap::~ImageBitmap()
 {
 }
 
-PassRefPtrWillBeRawPtr<ImageBitmap> ImageBitmap::create(HTMLImageElement* image, const IntRect& cropRect)
+PassRefPtrWillBeRawPtr<ImageBitmap> ImageBitmap::create(HTMLImageElement* image, const IntRect& cropRect, bool originCleanFlag)
 {
     IntRect normalizedCropRect = normalizeRect(cropRect);
-    return adoptRefWillBeNoop(new ImageBitmap(image, normalizedCropRect));
+    return adoptRefWillBeNoop(new ImageBitmap(image, normalizedCropRect, originCleanFlag));
 }
 
-PassRefPtrWillBeRawPtr<ImageBitmap> ImageBitmap::create(HTMLVideoElement* video, const IntRect& cropRect)
+PassRefPtrWillBeRawPtr<ImageBitmap> ImageBitmap::create(HTMLVideoElement* video, const IntRect& cropRect, bool originCleanFlag)
 {
     IntRect normalizedCropRect = normalizeRect(cropRect);
-    return adoptRefWillBeNoop(new ImageBitmap(video, normalizedCropRect));
+    return adoptRefWillBeNoop(new ImageBitmap(video, normalizedCropRect, originCleanFlag));
 }
 
 PassRefPtrWillBeRawPtr<ImageBitmap> ImageBitmap::create(HTMLCanvasElement* canvas, const IntRect& cropRect)