1 files changed, 24 insertions, 6 deletions
diff --git a/chromium/third_party/blink/renderer/core/loader/resource/text_resource.h b/chromium/third_party/blink/renderer/core/loader/resource/text_resource.h
index 6016e3ab40b..214e246c21f 100644
--- a/chromium/third_party/blink/renderer/core/loader/resource/text_resource.h
+++ b/chromium/third_party/blink/renderer/core/loader/resource/text_resource.h
@@ -10,11 +10,23 @@
 #include "third_party/blink/renderer/core/html/parser/text_resource_decoder.h"
 #include "third_party/blink/renderer/platform/loader/fetch/resource.h"
 #include "third_party/blink/renderer/platform/loader/fetch/text_resource_decoder_options.h"
+#include "third_party/blink/renderer/platform/wtf/casting.h"
 
 namespace blink {
 
+class ResourceFetcher;
+
 class CORE_EXPORT TextResource : public Resource {
  public:
+  static TextResource* FetchSVGDocument(FetchParameters&,
+                                        ResourceFetcher*,
+                                        ResourceClient*);
+  TextResource(const ResourceRequest&,
+               ResourceType,
+               const ResourceLoaderOptions&,
+               const TextResourceDecoderOptions&);
+  ~TextResource() override;
+
   // Returns the decoded data in text form. The data has to be available at
   // call time.
   String DecodedText() const;
@@ -23,19 +35,25 @@ class CORE_EXPORT TextResource : public Resource {
 
   void SetEncodingForTest(const String& encoding) { SetEncoding(encoding); }
 
- protected:
-  TextResource(const ResourceRequest&,
-               ResourceType,
-               const ResourceLoaderOptions&,
-               const TextResourceDecoderOptions&);
-  ~TextResource() override;
+  bool HasData() const { return Data(); }
 
+ protected:
   void SetEncoding(const String&) override;
 
  private:
   std::unique_ptr<TextResourceDecoder> decoder_;
 };
 
+template <>
+struct DowncastTraits<TextResource> {
+  static bool AllowFrom(const Resource& resource) {
+    return resource.GetType() == ResourceType::kCSSStyleSheet ||
+           resource.GetType() == ResourceType::kScript ||
+           resource.GetType() == ResourceType::kXSLStyleSheet ||
+           resource.GetType() == ResourceType::kSVGDocument;
+  }
+};
+
 }  // namespace blink
 
 #endif  // THIRD_PARTY_BLINK_RENDERER_CORE_LOADER_RESOURCE_TEXT_RESOURCE_H_