Fixing invalid check for existing file.

Review URL: http://webrtc-codereview.appspot.com/313002

git-svn-id: http://webrtc.googlecode.com/svn/trunk@1124 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/test/testsupport/fileutils.cc b/test/testsupport/fileutils.cc
index 84e9593..129651f 100644
--- a/test/testsupport/fileutils.cc
+++ b/test/testsupport/fileutils.cc
@@ -134,7 +134,7 @@
   std::string resources_path = ProjectRootPath() + kResourcesDirName + kPathDelimiter;
   std::string resource_file = resources_path + name + "_" + platform + "_" +
       architecture + "." + extension;
-  if (!FileExists(resource_file)) {
+  if (FileExists(resource_file)) {
     return resource_file;
   }
   // Try without architecture.