Reload All Images Using Load Image on Lo-Fi Image

Source/core/fetch/ResourceFetcher.cpp

Index: Source/core/fetch/ResourceFetcher.cpp
diff --git a/Source/core/fetch/ResourceFetcher.cpp b/Source/core/fetch/ResourceFetcher.cpp
index a62cb6a937df12a7209905da2f0158061672c426..22a343d7ac95a97a79c074c0dc54c495574aebff 100644
--- a/Source/core/fetch/ResourceFetcher.cpp
+++ b/Source/core/fetch/ResourceFetcher.cpp
@@ -31,6 +31,7 @@
 #include "core/fetch/CrossOriginAccessControl.h"
 #include "core/fetch/FetchContext.h"
 #include "core/fetch/FetchInitiatorTypeNames.h"
+#include "core/fetch/ImageResource.h"
 #include "core/fetch/MemoryCache.h"
 #include "core/fetch/ResourceLoader.h"
 #include "core/fetch/ResourceLoaderSet.h"
@@ -706,6 +707,20 @@ bool ResourceFetcher::shouldDeferImageLoad(const KURL& url) const
     return clientDefersImage(url) || !m_autoLoadImages;
 }
 
+void ResourceFetcher::reloadLoFiImages()
+{
+    for (const auto& documentResource : m_documentResources) {
+        Resource* resource = documentResource.value.get();
+        if (resource->isImage() && resource->response().httpHeaderField("chrome-proxy").contains("q=low")) {
+            ImageResource* imageResource = toImageResource(resource);
+            imageResource->mutableResourceRequest().setCachePolicy(ResourceRequestCachePolicy::ReloadBypassingCache);
+            imageResource->clearLoader();
+            imageResource->cacheHandler()->clearCachedMetadata();
+            imageResource->load(this, defaultResourceOptions());
+        }
+    }
+}
+
 void ResourceFetcher::reloadImagesIfNotDeferred()
 {
     for (const auto& documentResource : m_documentResources) {