| Index: Source/core/fetch/ResourceFetcher.cpp
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| diff --git a/Source/core/fetch/ResourceFetcher.cpp b/Source/core/fetch/ResourceFetcher.cpp
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| index 9334779c50b475516308adb3d948ef5fe5ba10fc..cd92d75b11102d71dc77a1a85b3f192f25ca0aad 100644
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| --- a/Source/core/fetch/ResourceFetcher.cpp
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| +++ b/Source/core/fetch/ResourceFetcher.cpp
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| @@ -742,8 +742,8 @@ ResourcePtr<Resource> ResourceFetcher::revalidateResource(const FetchRequest& re
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|      ResourceRequest revalidatingRequest(resource->resourceRequest());
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|      addAdditionalRequestHeaders(revalidatingRequest, resource->type());
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|  
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| -    const String& lastModified = resource->response().httpHeaderField("Last-Modified");
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| -    const String& eTag = resource->response().httpHeaderField("ETag");
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| +    const AtomicString& lastModified = resource->response().httpHeaderField("Last-Modified");
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| +    const AtomicString& eTag = resource->response().httpHeaderField("ETag");
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|      if (!lastModified.isEmpty() || !eTag.isEmpty()) {
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|          ASSERT(context().cachePolicy(resource->type()) != CachePolicyReload);
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|          if (context().cachePolicy(resource->type()) == CachePolicyRevalidate)
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| 
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