Adding JNI code for dalvik.system.DexFile and java.lang.Class

Change-Id: I079c037db77aeaca0dec06660f7551f57adf2607
diff --git a/src/common_test.h b/src/common_test.h
index 844fa00..b56090b 100644
--- a/src/common_test.h
+++ b/src/common_test.h
@@ -241,15 +241,6 @@
     return class_loader;
   }
 
-  std::string ConvertClassNameToClassDescriptor(const char* class_name) {
-    std::string desc;
-    desc += "L";
-    desc += class_name;
-    desc += ";";
-    std::replace(desc.begin(), desc.end(), '.', '/');
-    return desc;
-  }
-
   void CompileMethod(Method* method) {
     CHECK(method != NULL);
     compiler_->CompileOne(method);
@@ -262,7 +253,7 @@
                            const char* class_name,
                            const char* method_name,
                            const char* signature) {
-    std::string class_descriptor = ConvertClassNameToClassDescriptor(class_name);
+    std::string class_descriptor = DotToDescriptor(class_name);
     Class* klass = class_linker_->FindClass(class_descriptor, class_loader);
     CHECK(klass != NULL) << "Class not found " << class_name;
     Method* method = klass->FindDirectMethod(method_name, signature);
@@ -275,7 +266,7 @@
                             const char* class_name,
                             const char* method_name,
                             const char* signature) {
-    std::string class_descriptor = ConvertClassNameToClassDescriptor(class_name);
+    std::string class_descriptor = DotToDescriptor(class_name);
     Class* klass = class_linker_->FindClass(class_descriptor, class_loader);
     CHECK(klass != NULL) << "Class not found " << class_name;
     Method* method = klass->FindVirtualMethod(method_name, signature);