jni_generator: Pass object parameters as JavaParamRef.

chrome/browser/ui/android/omnibox/omnibox_url_emphasizer.cc

 // Copyright 2014 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 "chrome/browser/ui/android/omnibox/omnibox_url_emphasizer.h"
 
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
 #include "chrome/browser/autocomplete/chrome_autocomplete_scheme_classifier.h"
 #include "chrome/browser/profiles/profile_android.h"
 #include "components/omnibox/browser/autocomplete_input.h"
 #include "jni/OmniboxUrlEmphasizer_jni.h"
 
 // static
-ScopedJavaLocalRef<jintArray> ParseForEmphasizeComponents(JNIEnv* env,
-                                                          jclass clazz,
-                                                          jobject jprofile,
-                                                          jstring jtext) {
+ScopedJavaLocalRef<jintArray> ParseForEmphasizeComponents(
+    JNIEnv* env,
+    const JavaParamRef<jclass>& clazz,
+    const JavaParamRef<jobject>& jprofile,
+    const JavaParamRef<jstring>& jtext) {
   Profile* profile = ProfileAndroid::FromProfileAndroid(jprofile);
   DCHECK(profile);
 
   base::string16 text(base::android::ConvertJavaStringToUTF16(env, jtext));
 
   url::Component scheme, host;
   AutocompleteInput::ParseForEmphasizeComponents(
       text, ChromeAutocompleteSchemeClassifier(profile), &scheme, &host);
 
   int emphasize_values[] = {scheme.begin, scheme.len, host.begin, host.len};
   return base::android::ToJavaIntArray(env, emphasize_values, 4);
 }
 
 // static
 bool OmniboxUrlEmphasizer::RegisterOmniboxUrlEmphasizer(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }