Revert of Cache SubResourceIntegrity checks at Resource

third_party/WebKit/Source/core/fetch/ScriptResource.cpp

Index: third_party/WebKit/Source/core/fetch/ScriptResource.cpp
diff --git a/third_party/WebKit/Source/core/fetch/ScriptResource.cpp b/third_party/WebKit/Source/core/fetch/ScriptResource.cpp
index 47fbbf9062239523b28255f0ef19787b144b4add..fe1e603487b02eb835e852f8b812a0337c7e98cb 100644
--- a/third_party/WebKit/Source/core/fetch/ScriptResource.cpp
+++ b/third_party/WebKit/Source/core/fetch/ScriptResource.cpp
@@ -57,7 +57,8 @@
                    Script,
                    options,
                    "application/javascript",
-                   charset) {}
+                   charset),
+      m_integrityDisposition(ScriptIntegrityDisposition::NotChecked) {}
 
 ScriptResource::~ScriptResource() {}
 
@@ -111,4 +112,18 @@
          MIMETypeRegistry::isSupportedJavaScriptMIMEType(httpContentType());
 }
 
+void ScriptResource::setIntegrityDisposition(
+    ScriptIntegrityDisposition disposition) {
+  DCHECK_NE(disposition, ScriptIntegrityDisposition::NotChecked);
+  m_integrityDisposition = disposition;
+}
+bool ScriptResource::mustRefetchDueToIntegrityMetadata(
+    const FetchRequest& request) const {
+  if (request.integrityMetadata().isEmpty())
+    return false;
+
+  return !IntegrityMetadata::setsEqual(m_integrityMetadata,
+                                       request.integrityMetadata());
+}
+
 }  // namespace blink