[NoStatePrefetch] Set LOAD_PREFETCH flag on all prefetch requests

third_party/WebKit/Source/core/html/parser/HTMLResourcePreloader.cpp

Index: third_party/WebKit/Source/core/html/parser/HTMLResourcePreloader.cpp
diff --git a/third_party/WebKit/Source/core/html/parser/HTMLResourcePreloader.cpp b/third_party/WebKit/Source/core/html/parser/HTMLResourcePreloader.cpp
index 1b6b6692b68e02a2ccc20f5d2c95994136b22fde..ba6d70d0aec4a8b28a02c1d222b7f5ba8fa072c5 100644
--- a/third_party/WebKit/Source/core/html/parser/HTMLResourcePreloader.cpp
+++ b/third_party/WebKit/Source/core/html/parser/HTMLResourcePreloader.cpp
@@ -76,6 +76,8 @@ void HTMLResourcePreloader::preload(std::unique_ptr<PreloadRequest> preload, con
         return;
     if (preload->resourceType() == Resource::Script || preload->resourceType() == Resource::CSSStyleSheet || preload->resourceType() == Resource::ImportResource)
         request.setCharset(preload->charset().isEmpty() ? m_document->characterSet().getString() : preload->charset());
+    if (m_document->isPrefetchOnly())
+        request.setLinkPreload(true);
     request.setForPreload(true, preload->discoveryTime());
     int duration = static_cast<int>(1000 * (monotonicallyIncreasingTime() - preload->discoveryTime()));
     DEFINE_STATIC_LOCAL(CustomCountHistogram, preloadDelayHistogram, ("WebCore.PreloadDelayMs", 0, 2000, 20));