Remove calls to HandleScope default ctor.

Source/web/tests/CustomEventTest.cpp

Index: Source/web/tests/CustomEventTest.cpp
diff --git a/Source/web/tests/CustomEventTest.cpp b/Source/web/tests/CustomEventTest.cpp
index 810d8d1f819fdedaab6d9e3ebc055f1271f24ac4..f2ae08fc488bffe6d0234cd7b4f10f084ec075b2 100644
--- a/Source/web/tests/CustomEventTest.cpp
+++ b/Source/web/tests/CustomEventTest.cpp
@@ -38,6 +38,7 @@
 #include "WebView.h"
 #include "WebViewImpl.h"
 #include "bindings/v8/ExceptionStatePlaceholder.h"
+#include "bindings/v8/ScriptController.h"
 #include "bindings/v8/SerializedScriptValue.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebUnitTestSupport.h"
@@ -105,7 +106,7 @@ TEST(CustomEventTest, InitWithSerializedScriptValue)
     WebDOMEvent event = frame->frame()->document()->createEvent("CustomEvent", IGNORE_EXCEPTION);
     WebDOMCustomEvent customEvent = event.to<WebDOMCustomEvent>();
 
-    v8::HandleScope handleScope;
+    v8::HandleScope handleScope(frame->frame()->script()->isolate());

[pfeldman, 2013/09/03 09:40:21]

Looks like a pattern. ScriptController::GetIsolate(Frame *frame) could help.

[marja, 2013/09/03 11:09:30]

Added getIsolateFromFrame to V8Bindings.h (matches
getIsolateFromScriptExecutionContext which was already added by this CL).

     customEvent.initCustomEvent("blah", false, false, WebSerializedScriptValue::serialize(v8::Boolean::New(true)));
     RefPtr<EventListener> listener = TestListener::create(frame->mainWorldScriptContext());
     frame->frame()->document()->addEventListener("blah", listener, false);