Removes MessageLoop::TYPE_XXX where possible

content/browser/appcache/chrome_appcache_service_unittest.cc

Index: content/browser/appcache/chrome_appcache_service_unittest.cc
diff --git a/content/browser/appcache/chrome_appcache_service_unittest.cc b/content/browser/appcache/chrome_appcache_service_unittest.cc
index a4e895c6dd0a3130c6cad8173ab1956d7ec2c2fe..36d70c746ee9d3ac7fa67173a6cc9803be5c69bd 100644
--- a/content/browser/appcache/chrome_appcache_service_unittest.cc
+++ b/content/browser/appcache/chrome_appcache_service_unittest.cc
@@ -63,8 +63,7 @@ class MockURLRequestContextGetter : public net::URLRequestContextGetter {
 class ChromeAppCacheServiceTest : public testing::Test {
  public:
   ChromeAppCacheServiceTest()
-      : message_loop_(base::MessageLoop::TYPE_IO),
-        kProtectedManifestURL(kProtectedManifest),
+      : kProtectedManifestURL(kProtectedManifest),
         kNormalManifestURL(kNormalManifest),
         kSessionOnlyManifestURL(kSessionOnlyManifest),
         file_thread_(BrowserThread::FILE, &message_loop_),
@@ -79,7 +78,7 @@ class ChromeAppCacheServiceTest : public testing::Test {
       bool init_storage);
   void InsertDataIntoAppCache(ChromeAppCacheService* appcache_service);
 
-  base::MessageLoop message_loop_;
+  base::MessageLoopForIO message_loop_;
   base::ScopedTempDir temp_dir_;
   const GURL kProtectedManifestURL;
   const GURL kNormalManifestURL;