Fix linux XFA build.

xfa/src/fxjse/src/class.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "xfa/src/fxjse/src/class.h"
 
 #include "xfa/src/fxjse/src/context.h"
 #include "xfa/src/fxjse/src/scope_inline.h"
@@ skipping 15 matching lines @@
 void FXJSE_DefineFunctions(FXJSE_HCONTEXT hContext,
                            const FXJSE_FUNCTION* lpFunctions,
                            int nNum) {
   CFXJSE_Context* lpContext = reinterpret_cast<CFXJSE_Context*>(hContext);
   ASSERT(lpContext);
   CFXJSE_ScopeUtil_IsolateHandleContext scope(lpContext);
   v8::Isolate* pIsolate = lpContext->GetRuntime();
   v8::Local<v8::Object> hGlobalObject =
       FXJSE_GetGlobalObjectFromContext(scope.GetLocalContext());
   for (int32_t i = 0; i < nNum; i++) {
-    hGlobalObject->DefineOwnProperty(
+    v8::Maybe<bool> maybe_success = hGlobalObject->DefineOwnProperty(
         scope.GetLocalContext(),
         v8::String::NewFromUtf8(pIsolate, lpFunctions[i].name),
         v8::Function::New(
             pIsolate, FXJSE_V8FunctionCallback_Wrapper,
             v8::External::New(pIsolate,
                               const_cast<FXJSE_FUNCTION*>(lpFunctions + i))),
         static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete));
+    if (!maybe_success.FromMaybe(false))
+      return;
   }
 }
 
 FXJSE_HCLASS FXJSE_DefineClass(FXJSE_HCONTEXT hContext,
                                const FXJSE_CLASS* lpClass) {
   CFXJSE_Context* lpContext = reinterpret_cast<CFXJSE_Context*>(hContext);
   ASSERT(lpContext);
   return reinterpret_cast<FXJSE_HCLASS>(
       CFXJSE_Class::Create(lpContext, lpClass, FALSE));
 }
@@ skipping 283 matching lines @@
 CFXJSE_Class* CFXJSE_Class::GetClassFromContext(CFXJSE_Context* pContext,
                                                 const CFX_ByteStringC& szName) {
   for (int count = pContext->m_rgClasses.GetSize(), i = 0; i < count; i++) {
     CFXJSE_Class* pClass = pContext->m_rgClasses[i];
     if (pClass->m_szClassName == szName) {
       return pClass;
     }
   }
   return NULL;
 }