Make calls to AtomicString(const String&) explicit in loader/ and fetch/

Source/core/fetch/ScriptResource.cpp

Index: Source/core/fetch/ScriptResource.cpp
diff --git a/Source/core/fetch/ScriptResource.cpp b/Source/core/fetch/ScriptResource.cpp
index 873ef3322722f711ff22d971252932b792fd5174..2724673c86ed5b77c9e4b788b8ad6aa2393ce6fd 100644
--- a/Source/core/fetch/ScriptResource.cpp
+++ b/Source/core/fetch/ScriptResource.cpp
@@ -78,7 +78,7 @@ const String& ScriptResource::script()
         // That's because the MemoryCache thinks that it can clear out decoded data by calling destroyDecodedData(),
         // but we can't destroy script in destroyDecodedData because that's our only copy of the data!
         setEncodedSize(script.sizeInBytes());
-        m_script = script;
+        m_script = AtomicString(script);
     }
 
     return m_script.string();