Expose and check origin of request in response for foreign fetch.

third_party/WebKit/Source/modules/fetch/FetchResponseData.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef FetchResponseData_h
 #define FetchResponseData_h
 
 #include "modules/ModulesExport.h"
 #include "platform/heap/Handle.h"
 #include "platform/weborigin/KURL.h"
@@ skipping 16 matching lines @@
     // default."
     enum Type { BasicType, CORSType, DefaultType, ErrorType, OpaqueType, OpaqueRedirectType };
     // "A response can have an associated termination reason which is one of
     // end-user abort, fatal, and timeout."
     enum TerminationReason { EndUserAbortTermination, FatalTermination, TimeoutTermination };
 
     static FetchResponseData* create();
     static FetchResponseData* createNetworkErrorResponse();
     static FetchResponseData* createWithBuffer(BodyStreamBuffer*);
 
-    FetchResponseData* createBasicFilteredResponse();
-    FetchResponseData* createCORSFilteredResponse();
-    FetchResponseData* createOpaqueFilteredResponse();
-    FetchResponseData* createOpaqueRedirectFilteredResponse();
+    FetchResponseData* createBasicFilteredResponse() const;
+    FetchResponseData* createCORSFilteredResponse() const;
+    FetchResponseData* createOpaqueFilteredResponse() const;
+    FetchResponseData* createOpaqueRedirectFilteredResponse() const;
+
+    FetchResponseData* internalResponse() { return m_internalResponse; }
+    const FetchResponseData* internalResponse() const { return m_internalResponse; }
 
     FetchResponseData* clone(ScriptState*);
 
     Type getType() const { return m_type; }
     const KURL& url() const { return m_url; }
     unsigned short status() const { return m_status; }
     AtomicString statusMessage() const { return m_statusMessage; }
     FetchHeaderList* headerList() const { return m_headerList.get(); }
     BodyStreamBuffer* buffer() const { return m_buffer; }
     String mimeType() const;
@@ skipping 32 matching lines @@
     Member<FetchResponseData> m_internalResponse;
     Member<BodyStreamBuffer> m_buffer;
     String m_mimeType;
     int64_t m_responseTime;
     String m_cacheStorageCacheName;
 };
 
 } // namespace blink
 
 #endif // FetchResponseData_h