Pass method parameters as JavaParamRef in android_webview.

android_webview/native/aw_settings.h

 // Copyright (c) 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.
 
 #ifndef ANDROID_WEBVIEW_NATIVE_AW_SETTINGS_H_
 #define ANDROID_WEBVIEW_NATIVE_AW_SETTINGS_H_
 
 #include <jni.h>
 
 #include "base/android/jni_weak_ref.h"
@@ skipping 11 matching lines @@
 
 class AwSettings : public content::WebContentsObserver {
  public:
   static AwSettings* FromWebContents(content::WebContents* web_contents);
 
   AwSettings(JNIEnv* env, jobject obj, content::WebContents* web_contents);
   ~AwSettings() override;
 
   // Called from Java. Methods with "Locked" suffix require that the settings
   // access lock is held during their execution.
-  void Destroy(JNIEnv* env, jobject obj);
-  void PopulateWebPreferencesLocked(JNIEnv* env, jobject obj, jlong web_prefs);
-  void ResetScrollAndScaleState(JNIEnv* env, jobject obj);
-  void UpdateEverythingLocked(JNIEnv* env, jobject obj);
-  void UpdateInitialPageScaleLocked(JNIEnv* env, jobject obj);
-  void UpdateUserAgentLocked(JNIEnv* env, jobject obj);
-  void UpdateWebkitPreferencesLocked(JNIEnv* env, jobject obj);
-  void UpdateFormDataPreferencesLocked(JNIEnv* env, jobject obj);
-  void UpdateRendererPreferencesLocked(JNIEnv* env, jobject obj);
-  void UpdateOffscreenPreRasterLocked(JNIEnv* env, jobject obj);
+  void Destroy(JNIEnv* env, const base::android::JavaParamRef<jobject>& obj);
+  void PopulateWebPreferencesLocked(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& obj,
+      jlong web_prefs);
+  void ResetScrollAndScaleState(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& obj);
+  void UpdateEverythingLocked(JNIEnv* env,
+                              const base::android::JavaParamRef<jobject>& obj);
+  void UpdateInitialPageScaleLocked(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& obj);
+  void UpdateUserAgentLocked(JNIEnv* env,
+                             const base::android::JavaParamRef<jobject>& obj);
+  void UpdateWebkitPreferencesLocked(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& obj);
+  void UpdateFormDataPreferencesLocked(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& obj);
+  void UpdateRendererPreferencesLocked(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& obj);
+  void UpdateOffscreenPreRasterLocked(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& obj);
 
   void PopulateWebPreferences(content::WebPreferences* web_prefs);
 
  private:
   AwRenderViewHostExt* GetAwRenderViewHostExt();
   void UpdateEverything();
 
   // WebContentsObserver overrides:
   void RenderViewCreated(content::RenderViewHost* render_view_host) override;
   void WebContentsDestroyed() override;
 
   bool renderer_prefs_initialized_;
 
   JavaObjectWeakGlobalRef aw_settings_;
 };
 
 bool RegisterAwSettings(JNIEnv* env);
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_NATIVE_AW_SETTINGS_H_