Fail gracefully if InitializeResourceContext ends up calling itself recursively.

content/browser/browser_context.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/public/browser/browser_context.h"
 
 #include "content/browser/appcache/chrome_appcache_service.h"
 #include "content/browser/file_system/browser_file_system_helper.h"
 #include "content/browser/in_process_webkit/webkit_context.h"
 #include "content/browser/resource_context_impl.h"
@@ skipping 61 matching lines @@
           BrowserThread::WEBKIT_DEPRECATED));
   context->SetUserData(kWebKitContextKeyName,
                        new UserDataAdapter<WebKitContext>(webkit_context));
 
   scoped_refptr<ChromeAppCacheService> appcache_service =
       new ChromeAppCacheService(quota_manager->proxy());
   context->SetUserData(
       kAppCacheServicKeyName,
       new UserDataAdapter<ChromeAppCacheService>(appcache_service));
 
-  InitializeResourceContext(context);
+  EnsureResourceContextInitialized(context);
 
   // Check first to avoid memory leak in unittests.
   if (BrowserThread::IsMessageLoopValid(BrowserThread::IO)) {
     BrowserThread::PostTask(
         BrowserThread::IO, FROM_HERE,
         base::Bind(&ChromeAppCacheService::InitializeOnIOThread,
                    appcache_service,
                    context->IsOffTheRecord() ? FilePath() :
                        context->GetPath().Append(content::kAppCacheDirname),
                    context->GetResourceContext(),
@@ skipping 25 matching lines @@
 }
 
 FileSystemContext* BrowserContext::GetFileSystemContext(
     BrowserContext* browser_context) {
   CreateQuotaManagerAndClients(browser_context);
   return UserDataAdapter<FileSystemContext>::Get(
       browser_context, kFileSystemContextKeyName);
 }
 
 void BrowserContext::EnsureResourceContextInitialized(BrowserContext* context) {
-  if (context->GetResourceContext()->GetUserData(kWebKitContextKeyName))
-    return;
-  InitializeResourceContext(context);
+  content::EnsureResourceContextInitialized(context);
 }
 
 BrowserContext::~BrowserContext() {
   if (GetUserData(kDatabaseTrackerKeyName) &&
       BrowserThread::IsMessageLoopValid(BrowserThread::FILE)) {
     BrowserThread::PostTask(
         BrowserThread::FILE, FROM_HERE,
         base::Bind(&webkit_database::DatabaseTracker::Shutdown,
                    GetDatabaseTracker(this)));
   }
 }
 
 }  // namespace content