Consider "mixed content XHR" as mixed script instead of mixed display.

Source/core/fetch/ResourceLoaderOptions.h

Index: Source/core/fetch/ResourceLoaderOptions.h
diff --git a/Source/core/fetch/ResourceLoaderOptions.h b/Source/core/fetch/ResourceLoaderOptions.h
index 187efc3ac96c700ada8fe8b310b3e569ff39bb51..5c50363e1a25f24cbef6bda5eb54b80238919f9c 100644
--- a/Source/core/fetch/ResourceLoaderOptions.h
+++ b/Source/core/fetch/ResourceLoaderOptions.h
@@ -90,6 +90,11 @@ enum CredentialRequest {
     ClientDidNotRequestCredentials
 };
 
+enum MixedRawContentBlockingOption {
+    TreatAsPassiveContent,
+    TreatAsActiveContent

[abarth-chromium, 2013/08/30 06:37:08]

I'd recommend making this a three-state enum.  The extra value would be
TreatAsDefaultForType, which would give you the default value.  Then these two
values would force the check to be either passive or active, regardless of the
type.  We can then add ASSERTs in checkInsecureContent, for example, to make
sure we never get TreatAsDefaultForType for Raw resources.

+};
+
 struct ResourceLoaderOptions {
     ResourceLoaderOptions()
         : sendLoadCallbacks(DoNotSendCallbacks)
@@ -102,6 +107,7 @@ struct ResourceLoaderOptions {
         , contentSecurityPolicyOption(CheckContentSecurityPolicy)
         , requestOriginPolicy(UseDefaultOriginRestrictionsForType)
         , requestInitiatorContext(DocumentContext)
+        , mixedRawContentBlockingOption(TreatAsPassiveContent)
     {
     }
 
@@ -126,6 +132,7 @@ struct ResourceLoaderOptions {
         , contentSecurityPolicyOption(contentSecurityPolicyOption)
         , requestOriginPolicy(requestOriginPolicy)
         , requestInitiatorContext(requestInitiatorContext)
+        , mixedRawContentBlockingOption(TreatAsPassiveContent)
     {
     }
     SendCallbackPolicy sendLoadCallbacks;
@@ -139,6 +146,7 @@ struct ResourceLoaderOptions {
     FetchInitiatorInfo initiatorInfo;
     RequestOriginPolicy requestOriginPolicy;
     RequestInitiatorContext requestInitiatorContext;
+    MixedRawContentBlockingOption mixedRawContentBlockingOption;
 };
 
 } // namespace WebCore