Reload Lo-Fi images inline instead of reloading the whole page

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

Index: third_party/WebKit/Source/core/fetch/ResourceFetcher.cpp
diff --git a/third_party/WebKit/Source/core/fetch/ResourceFetcher.cpp b/third_party/WebKit/Source/core/fetch/ResourceFetcher.cpp
index 0f6d48e7f03d9bf7106e1804c5d685c7c4f9617b..6e7adcdcef18568d13b9e4d1edf35faf676718aa 100644
--- a/third_party/WebKit/Source/core/fetch/ResourceFetcher.cpp
+++ b/third_party/WebKit/Source/core/fetch/ResourceFetcher.cpp
@@ -30,6 +30,7 @@
 #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"
@@ -1059,6 +1060,17 @@ void ResourceFetcher::updateAllImageResourcePriorities()
     }
 }
 
+void ResourceFetcher::reloadLoFiImages()
+{
+    for (const auto& documentResource : m_documentResources) {
+        Resource* resource = documentResource.value.get();
+        if (resource && resource->isImage()) {
+            ImageResource* imageResource = toImageResource(resource);
+            imageResource->reloadIfLoFi(this);
+        }
+    }
+}
+
 #if PRELOAD_DEBUG
 void ResourceFetcher::printPreloadStats()
 {