Pass method parameters as JavaParamRef in android_webview.

android_webview/native/aw_message_port_service_impl.cc

 // 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.
 
 #include "android_webview/native/aw_message_port_service_impl.h"
 
 #include "android_webview/browser/aw_browser_context.h"
 #include "android_webview/browser/aw_message_port_message_filter.h"
 #include "android_webview/native/aw_contents.h"
 #include "base/android/jni_array.h"
@@ skipping 104 matching lines @@
     AwMessagePortMessageFilter* filter) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   for (MessagePorts::iterator iter = ports_.begin();
        iter != ports_.end(); iter++) {
     if (iter->second == filter) {
       ports_.erase(iter);
     }
   }
 }
 
-void AwMessagePortServiceImpl::PostAppToWebMessage(JNIEnv* env, jobject obj,
-    int sender_id, jstring message, jintArray sent_ports) {
+void AwMessagePortServiceImpl::PostAppToWebMessage(
+    JNIEnv* env,
+    const JavaParamRef<jobject>& obj,
+    int sender_id,
+    const JavaParamRef<jstring>& message,
+    const JavaParamRef<jintArray>& sent_ports) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   base::string16* j_message = new base::string16;
   ConvertJavaStringToUTF16(env, message, j_message);
   std::vector<int>* j_sent_ports = new std::vector<int>;
   if (sent_ports != nullptr)
     base::android::JavaIntArrayToIntVector(env, sent_ports, j_sent_ports);
 
   BrowserThread::PostTask(
       BrowserThread::IO,
       FROM_HERE,
       base::Bind(&AwMessagePortServiceImpl::PostAppToWebMessageOnIOThread,
                  base::Unretained(this),
                  sender_id,
                  base::Owned(j_message),
                  base::Owned(j_sent_ports)));
 }
 
 // The message port service cannot immediately close the port, because
 // it is possible that messages are still queued in the renderer process
 // waiting for a conversion. Instead, it sends a special message with
 // a flag which indicates that this message port should be closed.
-void AwMessagePortServiceImpl::ClosePort(JNIEnv* env, jobject obj,
-    int message_port_id) {
+void AwMessagePortServiceImpl::ClosePort(JNIEnv* env,
+                                         const JavaParamRef<jobject>& obj,
+                                         int message_port_id) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   BrowserThread::PostTask(
       BrowserThread::IO,
       FROM_HERE,
       base::Bind(&AwMessagePortServiceImpl::PostClosePortMessage,
                  base::Unretained(this),
                  message_port_id));
 }
 
-void AwMessagePortServiceImpl::ReleaseMessages(JNIEnv* env, jobject obj,
-    int message_port_id) {
+void AwMessagePortServiceImpl::ReleaseMessages(JNIEnv* env,
+                                               const JavaParamRef<jobject>& obj,
+                                               int message_port_id) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   BrowserThread::PostTask(
       BrowserThread::IO,
       FROM_HERE,
       base::Bind(&MessagePortProvider::ReleaseMessages, message_port_id));
 }
 
 void AwMessagePortServiceImpl::RemoveSentPorts(
     const std::vector<int>& sent_ports) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
@@ skipping 60 matching lines @@
 }
 
 // static
 jlong InitAwMessagePortService(JNIEnv* env, const JavaParamRef<jobject>& obj) {
   AwMessagePortServiceImpl* service = AwMessagePortServiceImpl::GetInstance();
   service->Init(env, obj);
   return reinterpret_cast<intptr_t>(service);
 }
 
 }  // namespace android_webview