Have Frame::script() return a reference

Source/bindings/v8/ScriptPreprocessor.cpp

Index: Source/bindings/v8/ScriptPreprocessor.cpp
diff --git a/Source/bindings/v8/ScriptPreprocessor.cpp b/Source/bindings/v8/ScriptPreprocessor.cpp
index efc2bdd779c141a9eed59d7add0689e6aa230fe3..979f4ec1a5a5de60f6c9582012cac7367f9efe7a 100644
--- a/Source/bindings/v8/ScriptPreprocessor.cpp
+++ b/Source/bindings/v8/ScriptPreprocessor.cpp
@@ -40,7 +40,7 @@
 
 namespace WebCore {
 
-ScriptPreprocessor::ScriptPreprocessor(const ScriptSourceCode& preprocessorSourceCode, ScriptController* controller, PageConsole& console)
+ScriptPreprocessor::ScriptPreprocessor(const ScriptSourceCode& preprocessorSourceCode, ScriptController& controller, PageConsole& console)
     : m_isPreprocessing(false)
 {
     v8::TryCatch tryCatch;
@@ -48,7 +48,7 @@ ScriptPreprocessor::ScriptPreprocessor(const ScriptSourceCode& preprocessorSourc
     Vector<ScriptSourceCode> sources;
     sources.append(preprocessorSourceCode);
     Vector<ScriptValue> scriptResults;
-    controller->executeScriptInIsolatedWorld(ScriptPreprocessorIsolatedWorldId, sources, DOMWrapperWorld::mainWorldExtensionGroup, &scriptResults);
+    controller.executeScriptInIsolatedWorld(ScriptPreprocessorIsolatedWorldId, sources, DOMWrapperWorld::mainWorldExtensionGroup, &scriptResults);
 
     if (scriptResults.size() != 1) {
         console.addMessage(JSMessageSource, ErrorMessageLevel, "ScriptPreprocessor internal error, one ScriptSourceCode must give exactly one result.");