search registered rtconf variables backwards and break when we find the

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 197 matching lines @@
     for (char *ptr = s ; *ptr ; ptr++) {
         if (*ptr == search) {
             *ptr = replace;
         }
     }
 }
 
 template<typename T> bool SkRTConfRegistry::parse(const char *name, T* value) {
     SkString *str = NULL;
 
-    for (int i = 0 ; i < fConfigFileKeys.count() ; i++) {
+    for (int i = fConfigFileKeys.count() - 1 ; i >= 0; i--) {
         if (fConfigFileKeys[i]->equals(name)) {
             str = fConfigFileValues[i];
+            break;
         }
     }
 
     SkString environment_variable("skia.");
     environment_variable.append(name);
 
     const char *environment_value = getenv(environment_variable.c_str());
     if (environment_value) {
         str->set(environment_value);
     } else {
@@ skipping 55 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;
 }