Initial Fetch integration for Subresource Integrity

Source/modules/fetch/FetchRequestData.h

Index: Source/modules/fetch/FetchRequestData.h
diff --git a/Source/modules/fetch/FetchRequestData.h b/Source/modules/fetch/FetchRequestData.h
index 69cdc6367ce9bd64516770bae3e13ce903ca7712..4c164036f71c4c0ae9d5d6418496786c668078c9 100644
--- a/Source/modules/fetch/FetchRequestData.h
+++ b/Source/modules/fetch/FetchRequestData.h
@@ -92,6 +92,8 @@ public:
     void setBuffer(BodyStreamBuffer* buffer) { m_buffer = buffer; }
     String mimeType() const { return m_mimeType; }
     void setMIMEType(const String& type) { m_mimeType = type; }
+    String integrity() const { return m_integrity; }
+    void setIntegrity(const String& integrity) { m_integrity = integrity; }
 
     DECLARE_TRACE();
 
@@ -120,6 +122,7 @@ private:
     Tainting m_responseTainting;
     Member<BodyStreamBuffer> m_buffer;
     String m_mimeType;
+    String m_integrity;
 };
 
 } // namespace blink