Annotate a GnuTLS memory leak in printing/backend/print_backend_cups.cc

printing/backend/print_backend_cups.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 "printing/backend/print_backend.h"
 
 #include "build/build_config.h"
 
 #include <dlfcn.h>
 #include <errno.h>
 #include <pthread.h>
 
 #if defined(OS_MACOSX)
 #include <AvailabilityMacros.h>
 #else
 #include <gcrypt.h>
 #endif
 
+#include "base/debug/leak_annotations.h"
 #include "base/file_util.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/synchronization/lock.h"
 #include "base/values.h"
 #include "printing/backend/cups_helper.h"
 #include "printing/backend/print_backend_consts.h"
 #include "url/gurl.h"
 
@@ skipping 44 matching lines @@
         continue;
       }
       const char* kGnuTlsInitFuncName = "gnutls_global_init";
       int (*pgnutls_global_init)(void) = reinterpret_cast<int(*)()>(
           dlsym(gnutls_lib, kGnuTlsInitFuncName));
       if (!pgnutls_global_init) {
         VLOG(1) << "Could not find " << kGnuTlsInitFuncName
                 << " in " << kGnuTlsFiles[i];
         continue;
       }
-      if ((*pgnutls_global_init)() != 0)
-        LOG(ERROR) << "gnutls_global_init() failed";
+      {
+        // GnuTLS has a genuine small memory leak that is easier to annotate
+        // than suppress. See http://crbug.com/176888#c7
+        // TODO(earthdok): remove this once the leak is fixed.
+        ANNOTATE_SCOPED_MEMORY_LEAK;
+        if ((*pgnutls_global_init)() != 0)
+          LOG(ERROR) << "gnutls_global_init() failed";
+      }
       return;
     }
     LOG(ERROR) << "Cannot find libgnutls";
   }
 };
 
 base::LazyInstance<GcryptInitializer> g_gcrypt_initializer =
     LAZY_INSTANCE_INITIALIZER;
 
 }  // namespace
@@ skipping 275 matching lines @@
                    << ", HTTP error: " << http_error;
         base::DeleteFile(ppd_path, false);
         ppd_path.clear();
       }
     }
   }
   return ppd_path;
 }
 
 }  // namespace printing