Fix 15 coverity complaints....

net/disk_cache/disk_cache_test_util.cc

 // Copyright (c) 2006-2009 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 "net/disk_cache/disk_cache_test_util.h"
 
 #include "base/logging.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "net/base/net_errors.h"
 #include "net/disk_cache/backend_impl.h"
 #include "net/disk_cache/cache_util.h"
 #include "net/disk_cache/file.h"
 
 using base::Time;
 using base::TimeDelta;
 
 namespace {
 
 std::wstring BuildCachePath(const std::wstring& name) {
   FilePath path;
-  PathService::Get(base::DIR_TEMP, &path);
+  PathService::Get(base::DIR_TEMP, &path);  // Ignore return value;
   path = path.Append(FilePath::FromWStringHack(name));
   if (!file_util::PathExists(path))
     file_util::CreateDirectory(path);
 
   return path.ToWStringHack();
 }
 
 }  // namespace.
 
 std::string GenerateKey(bool same_length) {
@@ skipping 130 matching lines @@
   } else {
     // Not finished yet. See if we have to abort.
     if (last_ == g_cache_tests_received)
       num_iterations_++;
     else
       last_ = g_cache_tests_received;
     if (40 == num_iterations_)
       MessageLoop::current()->Quit();
   }
 }