[WeakMemoryCache] Remove LRU lists, prune order control and live/dead distinction

third_party/WebKit/Source/core/fetch/ImageResource.cpp

Index: third_party/WebKit/Source/core/fetch/ImageResource.cpp
diff --git a/third_party/WebKit/Source/core/fetch/ImageResource.cpp b/third_party/WebKit/Source/core/fetch/ImageResource.cpp
index d40de1853d3bb77b87856a32f39238b0823f8897..270325b6c132b3a34b2934c1ee8c7ebb8fdf45dd 100644
--- a/third_party/WebKit/Source/core/fetch/ImageResource.cpp
+++ b/third_party/WebKit/Source/core/fetch/ImageResource.cpp
@@ -481,15 +481,7 @@ void ImageResource::decodedSizeChangedTo(const blink::Image* image,
   setDecodedSize(newSize);
 }
 
-void ImageResource::didDraw(const blink::Image* image) {
-  if (!image || image != m_image)
-    return;
-  // decodedSize() == 0 indicates that the image is decoded into
-  // DiscardableMemory, not in MemoryCache. So we don't need to call
-  // Resource::didAccessDecodedData() to update MemoryCache.
-  if (decodedSize() != 0)
-    Resource::didAccessDecodedData();
-}
+void ImageResource::didDraw(const blink::Image* image) {}
 
 bool ImageResource::shouldPauseAnimation(const blink::Image* image) {
   if (!image || image != m_image)