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

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 6395714499de125843536a2427f34ecaa71bd934..aad9d355cc05e6bc1a9497ca813ac60010c4dd79 100644
--- a/third_party/WebKit/Source/core/fetch/ImageResource.cpp
+++ b/third_party/WebKit/Source/core/fetch/ImageResource.cpp
@@ -432,6 +432,16 @@ void ImageResource::updateImageAnimationPolicy()
     }
 }
 
+void ImageResource::reloadIfLoFi(ResourceFetcher* fetcher)
+{
+    if (!m_response.httpHeaderField("chrome-proxy").contains("q=low"))
+        return;
+    m_resourceRequest.setCachePolicy(ResourceRequestCachePolicy::ReloadBypassingCache);
+    m_resourceRequest.setLoFiState(WebURLRequest::LoFiOff);
+    error(Resource::LoadError);
+    load(fetcher, fetcher->defaultResourceOptions());
+}
+
 void ImageResource::changedInRect(const blink::Image* image, const IntRect& rect)
 {
     if (!image || image != m_image)