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 1433ddccd306c260b54f3f06b9e8fe8fc9bb1c5e..f1f9d1b4c3d18342a52da16c4314f67da9eea6a9 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