Display images in multiline Braille

third_party/WebKit/Source/modules/accessibility/AXLayoutObject.cpp

Index: third_party/WebKit/Source/modules/accessibility/AXLayoutObject.cpp
diff --git a/third_party/WebKit/Source/modules/accessibility/AXLayoutObject.cpp b/third_party/WebKit/Source/modules/accessibility/AXLayoutObject.cpp
index e25a21c16397051532d290ac7328edd52910eebd..dc0d71e6502f91a97d040f537bc0be7e83020efe 100644
--- a/third_party/WebKit/Source/modules/accessibility/AXLayoutObject.cpp
+++ b/third_party/WebKit/Source/modules/accessibility/AXLayoutObject.cpp
@@ -896,8 +896,12 @@ String AXLayoutObject::imageDataUrl(const IntSize& maxSize) const {
   if (!imageBitmap)
     return String();
 
+  StaticBitmapImage* bitmapImage = imageBitmap->bitmapImage();
+  if (!bitmapImage)
+    return String();
+
   // TODO(ccameron): AXLayoutObject::imageDataUrl should create sRGB images.
-  sk_sp<SkImage> image = imageBitmap->bitmapImage()->imageForCurrentFrame(
+  sk_sp<SkImage> image = bitmapImage->imageForCurrentFrame(
       ColorBehavior::transformToGlobalTarget());
   if (!image || image->width() <= 0 || image->height() <= 0)
     return String();