Fix some oauth2 test code: put most code in anonymous namespace to avoid

chrome/common/net/gaia/oauth2_access_token_fetcher_unittest.cc

Index: chrome/common/net/gaia/oauth2_access_token_fetcher_unittest.cc
===================================================================
--- chrome/common/net/gaia/oauth2_access_token_fetcher_unittest.cc	(revision 137883)
+++ chrome/common/net/gaia/oauth2_access_token_fetcher_unittest.cc	(working copy)
@@ -35,6 +35,7 @@
 using testing::Return;
 
 namespace {
+
 typedef std::vector<std::string> ScopeList;
 
 static const char kValidTokenResponse[] =
@@ -48,7 +49,6 @@
     "  \"expires_in\": 3600,"
     "  \"token_type\": \"Bearer\""
     "}";
-}
 
 class MockUrlFetcherFactory : public ScopedURLFetcherFactory,
                               public URLFetcherFactory {
@@ -76,6 +76,8 @@
                void(const GoogleServiceAuthError& error));
 };
 
+}  // namespace
+
 class OAuth2AccessTokenFetcherTest : public testing::Test {
  public:
   OAuth2AccessTokenFetcherTest()