[WIP] off-main-thread loading

third_party/WebKit/public/platform/Platform.h

Index: third_party/WebKit/public/platform/Platform.h
diff --git a/third_party/WebKit/public/platform/Platform.h b/third_party/WebKit/public/platform/Platform.h
index b6968a9d2210e4251e8e5c42320a168f65099dc8..9f4255d24237419de5c955b333eb6c81aa921d8e 100644
--- a/third_party/WebKit/public/platform/Platform.h
+++ b/third_party/WebKit/public/platform/Platform.h
@@ -55,6 +55,7 @@
 #include "WebString.h"
 #include "WebURLError.h"
 #include "WebVector.h"
+#include "WebWorkerFetchContext.h"
 #include "base/metrics/user_metrics_action.h"
 #include "cc/resources/shared_bitmap.h"
 #include "cc/surfaces/frame_sink_id.h"
@@ -358,6 +359,11 @@ class BLINK_PLATFORM_EXPORT Platform {
     return WebURLError();
   }
 
+  virtual std::unique_ptr<WebWorkerFetchContextInfo>
+  createWorkerFetchContextInfo() {
+    return nullptr;
+  }
+
   // Plugins -------------------------------------------------------------
 
   // If refresh is true, then cached information should not be used to