fix boolean check for unknown rtconf variables in files.

src/utils/SkRTConf.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkRTConf.h"
 #include "SkOSFile.h"
 
@@ skipping 58 matching lines @@
     if (configFileSize == 0) {
         printAll(path);
     }
     sk_fclose(fp);
 }
 
 // Run through every provided configuration option and print a warning if the user hasn't
 // declared a correponding configuration object somewhere.
 void SkRTConfRegistry::validate() const {
     for (int i = 0 ; i < fConfigFileKeys.count() ; i++) {
-        if (fConfs.find(fConfigFileKeys[i]->c_str())) {
+        if (!fConfs.find(fConfigFileKeys[i]->c_str())) {
             SkDebugf("WARNING: You have config value %s in your configuration file, but I've never heard of that.\n", fConfigFileKeys[i]->c_str());
         }
     }
 }
 
 void SkRTConfRegistry::printAll(const char *fname) const {
     SkWStream *o;
 
     if (NULL != fname) {
         o = new SkFILEWStream(fname);
@@ skipping 196 matching lines @@
 template void SkRTConfRegistry::set(const char *name, int value);
 template void SkRTConfRegistry::set(const char *name, unsigned int value);
 template void SkRTConfRegistry::set(const char *name, float value);
 template void SkRTConfRegistry::set(const char *name, double value);
 template void SkRTConfRegistry::set(const char *name, char * value);
 
 SkRTConfRegistry &skRTConfRegistry() {
     static SkRTConfRegistry r;
     return r;
 }