jni: Pass method parameters as JavaParamRef in chrome/browser/ui.

chrome/browser/ui/android/javascript_app_modal_dialog_android.cc

Index: chrome/browser/ui/android/javascript_app_modal_dialog_android.cc
diff --git a/chrome/browser/ui/android/javascript_app_modal_dialog_android.cc b/chrome/browser/ui/android/javascript_app_modal_dialog_android.cc
index 297a6d06b08801c04adc6ac0dc89fd242882f7bc..cc91515a95e784f89827f5d4da499e71d480b398 100644
--- a/chrome/browser/ui/android/javascript_app_modal_dialog_android.cc
+++ b/chrome/browser/ui/android/javascript_app_modal_dialog_android.cc
@@ -108,7 +108,10 @@ void JavascriptAppModalDialogAndroid::AcceptAppModalDialog() {
 }
 
 void JavascriptAppModalDialogAndroid::DidAcceptAppModalDialog(
-    JNIEnv* env, jobject, jstring prompt, bool should_suppress_js_dialogs) {
+    JNIEnv* env,
+    const JavaParamRef<jobject>&,
+    const JavaParamRef<jstring>& prompt,
+    bool should_suppress_js_dialogs) {
   base::string16 prompt_text =
       base::android::ConvertJavaStringToUTF16(env, prompt);
   dialog_->OnAccept(prompt_text, should_suppress_js_dialogs);
@@ -125,7 +128,9 @@ bool JavascriptAppModalDialogAndroid::IsShowing() const {
 }
 
 void JavascriptAppModalDialogAndroid::DidCancelAppModalDialog(
-    JNIEnv* env, jobject, bool should_suppress_js_dialogs) {
+    JNIEnv* env,
+    const JavaParamRef<jobject>&,
+    bool should_suppress_js_dialogs) {
   dialog_->OnCancel(should_suppress_js_dialogs);
   delete this;
 }