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

chrome/browser/ui/android/bluetooth_chooser_android.h

 // Copyright 2015 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.
 
 #ifndef CHROME_BROWSER_UI_ANDROID_BLUETOOTH_CHOOSER_ANDROID_H_
 #define CHROME_BROWSER_UI_ANDROID_BLUETOOTH_CHOOSER_ANDROID_H_
 
 #include "base/android/scoped_java_ref.h"
 #include "content/public/browser/bluetooth_chooser.h"
 #include "content/public/browser/web_contents.h"
@@ skipping 10 matching lines @@
   // content::BluetoothChooser:
   bool CanAskForScanningPermission() override;
   void SetAdapterPresence(AdapterPresence presence) override;
   void ShowDiscoveryState(DiscoveryState state) override;
   void AddDevice(const std::string& device_id,
                  const base::string16& device_name) override;
   void RemoveDevice(const std::string& device_id) override;
 
   // Report the dialog's result.
   void OnDialogFinished(JNIEnv* env,
-                        jobject obj,
+                        const base::android::JavaParamRef<jobject>& obj,
                         jint event_type,
-                        jstring device_id);
+                        const base::android::JavaParamRef<jstring>& device_id);
 
   // Notify bluetooth stack that the search needs to be re-issued.
-  void RestartSearch(JNIEnv* env, jobject obj);
+  void RestartSearch(JNIEnv* env,
+                     const base::android::JavaParamRef<jobject>& obj);
 
-  void ShowBluetoothOverviewLink(JNIEnv* env, jobject obj);
-  void ShowBluetoothPairingLink(JNIEnv* env, jobject obj);
-  void ShowBluetoothAdapterOffLink(JNIEnv* env, jobject obj);
-  void ShowNeedLocationPermissionLink(JNIEnv* env, jobject obj);
+  void ShowBluetoothOverviewLink(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& obj);
+  void ShowBluetoothPairingLink(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& obj);
+  void ShowBluetoothAdapterOffLink(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& obj);
+  void ShowNeedLocationPermissionLink(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& obj);
 
   static bool Register(JNIEnv* env);
 
  private:
   base::android::ScopedJavaGlobalRef<jobject> java_dialog_;
 
   BluetoothChooser::EventHandler event_handler_;
 };
 
 #endif  // CHROME_BROWSER_UI_ANDROID_BLUETOOTH_CHOOSER_ANDROID_H_