jni_generator: Pass object parameters as JavaParamRef.

content/browser/android/browser_startup_controller.cc

 // Copyright 2013 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 "content/browser/android/browser_startup_controller.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "content/browser/android/content_startup_flags.h"
 
 #include "jni/BrowserStartupController_jni.h"
 
 namespace content {
 
 bool BrowserMayStartAsynchronously() {
   JNIEnv* env = base::android::AttachCurrentThread();
   return Java_BrowserStartupController_browserMayStartAsynchonously(env);
 }
 
 void BrowserStartupComplete(int result) {
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_BrowserStartupController_browserStartupComplete(env, result);
 }
 
 bool RegisterBrowserStartupController(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
-static void SetCommandLineFlags(JNIEnv* env,
-                                jclass clazz,
-                                jboolean single_process,
-                                jstring plugin_descriptor) {
+static void SetCommandLineFlags(
+    JNIEnv* env,
+    const JavaParamRef<jclass>& clazz,
+    jboolean single_process,
+    const JavaParamRef<jstring>& plugin_descriptor) {
   std::string plugin_str =
       (plugin_descriptor == NULL
            ? std::string()
            : base::android::ConvertJavaStringToUTF8(env, plugin_descriptor));
   SetContentCommandLineFlags(static_cast<bool>(single_process), plugin_str);
 }
 
-static jboolean IsOfficialBuild(JNIEnv* env, jclass clazz) {
+static jboolean IsOfficialBuild(JNIEnv* env,
+                                const JavaParamRef<jclass>& clazz) {
 #if defined(OFFICIAL_BUILD)
   return true;
 #else
   return false;
 #endif
 }
 
-static jboolean IsPluginEnabled(JNIEnv* env, jclass clazz) {
+static jboolean IsPluginEnabled(JNIEnv* env,
+                                const JavaParamRef<jclass>& clazz) {
 #if defined(ENABLE_PLUGINS)
   return true;
 #else
   return false;
 #endif
 }
 
 }  // namespace content