Make exception throwing more robust in V8 out-of-stack situations

Source/bindings/core/v8/V8PerContextData.cpp

 /*
  * Copyright (C) 2012 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 77 matching lines @@
     return v8::Local<v8::Object>();
 }
 
 v8::Local<v8::Function> V8PerContextData::constructorForTypeSlowCase(const WrapperTypeInfo* type)
 {
     ASSERT(!m_errorPrototype.isEmpty());
 
     v8::Context::Scope scope(context());
     v8::Handle<v8::FunctionTemplate> functionTemplate = type->domTemplate(m_isolate);
     // Getting the function might fail if we're running out of stack or memory.
-    v8::TryCatch tryCatch;
     v8::Local<v8::Function> function = functionTemplate->GetFunction();
     if (function.IsEmpty())
         return v8::Local<v8::Function>();
 
     if (type->parentClass) {
         v8::Local<v8::Object> prototypeTemplate = constructorForType(type->parentClass);
         if (prototypeTemplate.IsEmpty())
             return v8::Local<v8::Function>();
         function->SetPrototype(prototypeTemplate);
     }
@@ skipping 43 matching lines @@
 {
     return m_compiledPrivateScript.Get(className);
 }
 
 void V8PerContextData::setCompiledPrivateScript(String className, v8::Handle<v8::Value> compiledObject)
 {
     m_compiledPrivateScript.Set(className, compiledObject);
 }
 
 } // namespace blink