Print Preview: Enable tests disabled on ASAN once again.

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>
@@ skipping 147 matching lines @@
     const std::string& printer_name,
     PrinterCapsAndDefaults* printer_info) {
   DCHECK(printer_info);
 
   VLOG(1) << "CUPS: Getting caps and defaults"
           << ", printer name: " << printer_name;
 
   base::FilePath ppd_path(GetPPD(printer_name.c_str()));
   // In some cases CUPS failed to get ppd file.
   if (ppd_path.empty()) {
-    LOG(ERROR) << "CUPS: Failed to get PPD"
-               << ", printer name: " << printer_name;
+    LOG(ERROR) << "CUPS: Failed to get PPD, printer name: " << printer_name;
     return false;
   }
 
   std::string content;
   bool res = base::ReadFileToString(ppd_path, &content);
 
   base::DeleteFile(ppd_path, false);
 
   if (res) {
     printer_info->printer_capabilities.swap(content);
@@ skipping 54 matching lines @@
     print_backend_settings->GetInteger(kCUPSEncryption, &encryption);
   }
   GURL print_server_url(print_server_url_str.c_str());
   return new PrintBackendCUPS(print_server_url,
                               static_cast<http_encryption_t>(encryption),
                               cups_blocking == kValueTrue);
 }
 
 int PrintBackendCUPS::GetDests(cups_dest_t** dests) {
   if (print_server_url_.is_empty()) {  // Use default (local) print server.
+    // GnuTLS has a genuine small memory leak that is easier to annotate
+    // than suppress. See http://crbug.com/176888#c7
+    // In theory any CUPS function can trigger this leak, but in
+    // PrintBackendCUPS, this is the most likely spot.
+    // TODO(earthdok): remove this once the leak is fixed.
+    ANNOTATE_SCOPED_MEMORY_LEAK;
     return cupsGetDests(dests);
   } else {
     HttpConnectionCUPS http(print_server_url_, cups_encryption_);
     http.SetBlocking(blocking_);
     return cupsGetDests2(http.http(), dests);
   }
 }
 
 base::FilePath PrintBackendCUPS::GetPPD(const char* name) {
   // cupsGetPPD returns a filename stored in a static buffer in CUPS.
@@ skipping 38 matching lines @@
                    << ", HTTP error: " << http_error;
         base::DeleteFile(ppd_path, false);
         ppd_path.clear();
       }
     }
   }
   return ppd_path;
 }
 
 }  // namespace printing