Schedule image resource downloads by decreasing visual impact - Blink Side

Source/core/rendering/RenderBlock.cpp

Index: Source/core/rendering/RenderBlock.cpp
diff --git a/Source/core/rendering/RenderBlock.cpp b/Source/core/rendering/RenderBlock.cpp
index 6eec95fcc9a3d75a9217179e9ec19b42302478a8..378171a15a1bf7f072061f7d3f1c5f2d65c9a21f 100644
--- a/Source/core/rendering/RenderBlock.cpp
+++ b/Source/core/rendering/RenderBlock.cpp
@@ -1326,8 +1326,14 @@ bool RenderBlock::updateImageLoadingPriorities()
     ResourceLoadPriorityOptimizer::VisibilityStatus status = isVisible ?
         ResourceLoadPriorityOptimizer::Visible : ResourceLoadPriorityOptimizer::NotVisible;
 
+    LayoutRect screenArea;
+    if (!objectBounds.isEmpty()) {
+        screenArea = viewBounds;
+        screenArea.intersect(objectBounds);
+    }
+
     for (Vector<ImageResource*>::iterator it = images.begin(), end = images.end(); it != end; ++it)
-        ResourceLoadPriorityOptimizer::resourceLoadPriorityOptimizer()->notifyImageResourceVisibility(*it, status);
+        ResourceLoadPriorityOptimizer::resourceLoadPriorityOptimizer()->notifyImageResourceVisibility(*it, status, screenArea);
 
     return true;
 }