Use precaching for more data: urls than just images.

Source/core/fetch/ImageResource.cpp

Index: Source/core/fetch/ImageResource.cpp
diff --git a/Source/core/fetch/ImageResource.cpp b/Source/core/fetch/ImageResource.cpp
index 34f240fc2aca412835790b3397d231ba46ed1435..9151123f9e4c055c943f74353f60064f0818315c 100644
--- a/Source/core/fetch/ImageResource.cpp
+++ b/Source/core/fetch/ImageResource.cpp
@@ -45,34 +45,6 @@
 
 namespace blink {
 
-void ImageResource::preCacheDataURIImage(const FetchRequest& request, ResourceFetcher* fetcher)
-{
-    const KURL& url = request.resourceRequest().url();
-    ASSERT(url.protocolIsData());
-
-    const String cacheIdentifier = fetcher->getCacheIdentifier();
-    if (memoryCache()->resourceForURL(url, cacheIdentifier))
-        return;
-
-    WebString mimetype;
-    WebString charset;
-    RefPtr<SharedBuffer> data = PassRefPtr<SharedBuffer>(Platform::current()->parseDataURL(url, mimetype, charset));
-    if (!data)
-        return;
-    ResourceResponse response(url, mimetype, data->size(), charset, String());
-
-    Resource* resource = new ImageResource(request.resourceRequest());
-    resource->setOptions(request.options());
-    // FIXME: We should provide a body stream here.
-    resource->responseReceived(response, nullptr);
-    if (data->size())
-        resource->setResourceBuffer(data);
-    resource->setCacheIdentifier(cacheIdentifier);
-    resource->finish();
-    memoryCache()->add(resource);
-    fetcher->scheduleDocumentResourcesGC();
-}
-
 ResourcePtr<ImageResource> ImageResource::fetch(FetchRequest& request, ResourceFetcher* fetcher)
 {
     if (request.resourceRequest().requestContext() == WebURLRequest::RequestContextUnspecified)
@@ -84,9 +56,6 @@ ResourcePtr<ImageResource> ImageResource::fetch(FetchRequest& request, ResourceF
         return 0;
     }
 
-    if (request.resourceRequest().url().protocolIsData())
-        ImageResource::preCacheDataURIImage(request, fetcher);
-
     if (fetcher->clientDefersImage(request.resourceRequest().url()))
         request.setDefer(FetchRequest::DeferredByClient);