Revert of Add an ASSERT about cross-world wrapper leakage into ScriptValue

Source/web/WebLocalFrameImpl.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 707 matching lines @@
 {
     if (!frame() || !frame()->script().canExecuteScripts(NotAboutToExecuteScript))
         return;
     frame()->script().bindToWindowObject(frame(), String(name), object);
 }
 
 void WebLocalFrameImpl::executeScript(const WebScriptSource& source)
 {
     ASSERT(frame());
     TextPosition position(OrdinalNumber::fromOneBasedInt(source.startLine), OrdinalNumber::first());
-    v8::HandleScope handleScope(toIsolate(frame()));
     frame()->script().executeScriptInMainWorld(ScriptSourceCode(source.code, source.url, position));
 }
 
 void WebLocalFrameImpl::executeScriptInIsolatedWorld(int worldID, const WebScriptSource* sourcesIn, unsigned numSources, int extensionGroup)
 {
     ASSERT(frame());
     RELEASE_ASSERT(worldID > 0);
     RELEASE_ASSERT(worldID < EmbedderWorldIdLimit);
 
     Vector<ScriptSourceCode> sources;
@@ skipping 62 matching lines @@
 {
     ASSERT(frame());
 
     // FIXME: This fake user gesture is required to make a bunch of pyauto
     // tests pass. If this isn't needed in non-test situations, we should
     // consider removing this code and changing the tests.
     // http://code.google.com/p/chromium/issues/detail?id=86397
     UserGestureIndicator gestureIndicator(DefinitelyProcessingNewUserGesture);
 
     TextPosition position(OrdinalNumber::fromOneBasedInt(source.startLine), OrdinalNumber::first());
-    return frame()->script().executeScriptInMainWorldAndReturnValue(ScriptSourceCode(source.code, source.url, position));
+    return frame()->script().executeScriptInMainWorldAndReturnValue(ScriptSourceCode(source.code, source.url, position)).v8Value();
 }
 
 void WebLocalFrameImpl::executeScriptInIsolatedWorld(int worldID, const WebScriptSource* sourcesIn, unsigned numSources, int extensionGroup, WebVector<v8::Local<v8::Value> >* results)
 {
     ASSERT(frame());
     RELEASE_ASSERT(worldID > 0);
     RELEASE_ASSERT(worldID < EmbedderWorldIdLimit);
 
     Vector<ScriptSourceCode> sources;
 
     for (unsigned i = 0; i < numSources; ++i) {
         TextPosition position(OrdinalNumber::fromOneBasedInt(sourcesIn[i].startLine), OrdinalNumber::first());
         sources.append(ScriptSourceCode(sourcesIn[i].code, sourcesIn[i].url, position));
     }
 
     if (results) {
-        Vector<v8::Local<v8::Value> > scriptResults;
+        Vector<ScriptValue> scriptResults;
         frame()->script().executeScriptInIsolatedWorld(worldID, sources, extensionGroup, &scriptResults);
         WebVector<v8::Local<v8::Value> > v8Results(scriptResults.size());
         for (unsigned i = 0; i < scriptResults.size(); i++)
-            v8Results[i] = v8::Local<v8::Value>::New(toIsolate(frame()), scriptResults[i]);
+            v8Results[i] = v8::Local<v8::Value>::New(toIsolate(frame()), scriptResults[i].v8Value());
         results->swap(v8Results);
     } else {
         frame()->script().executeScriptInIsolatedWorld(worldID, sources, extensionGroup, 0);
     }
 }
 
 v8::Handle<v8::Value> WebLocalFrameImpl::callFunctionEvenIfScriptDisabled(v8::Handle<v8::Function> function, v8::Handle<v8::Value> receiver, int argc, v8::Handle<v8::Value> argv[])
 {
     ASSERT(frame());
     return frame()->script().callFunction(function, receiver, argc, argv);
@@ skipping 1011 matching lines @@
         return;
 
     RefPtrWillBeRawPtr<Document> ownerDocument(frame()->document());
 
     // Protect privileged pages against bookmarklets and other javascript manipulations.
     if (SchemeRegistry::shouldTreatURLSchemeAsNotAllowingJavascriptURLs(frame()->document()->url().protocol()))
         return;
 
     String script = decodeURLEscapeSequences(url.string().substring(strlen("javascript:")));
     UserGestureIndicator gestureIndicator(DefinitelyProcessingNewUserGesture);
-    v8::HandleScope handleScope(toIsolate(frame()));
-    v8::Local<v8::Value> result = frame()->script().executeScriptInMainWorldAndReturnValue(ScriptSourceCode(script));
-    if (result.IsEmpty() || !result->IsString())
+    ScriptValue result = frame()->script().executeScriptInMainWorldAndReturnValue(ScriptSourceCode(script));
+
+    String scriptResult;
+    if (!result.toString(scriptResult))
         return;
-    String scriptResult = toCoreString(v8::Handle<v8::String>::Cast(result));
+
     if (!frame()->navigationScheduler().locationChangePending())
         frame()->document()->loader()->replaceDocument(scriptResult, ownerDocument.get());
 }
 
 void WebLocalFrameImpl::willDetachParent()
 {
     // Do not expect string scoping results from any frames that got detached
     // in the middle of the operation.
     if (m_textFinder && m_textFinder->scopingInProgress()) {
 
@@ skipping 41 matching lines @@
 
 void WebLocalFrameImpl::invalidateAll() const
 {
     ASSERT(frame() && frame()->view());
     FrameView* view = frame()->view();
     view->invalidateRect(view->frameRect());
     invalidateScrollbar();
 }
 
 } // namespace blink