Add missing using statements for JNI types.

content/browser/android/interface_registry_android_impl.cc

 // Copyright 2016 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/interface_registry_android_impl.h"
 
 #include <utility>
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/callback.h"
 #include "base/memory/ptr_util.h"
 #include "content/public/browser/browser_thread.h"
 #include "jni/InterfaceRegistry_jni.h"
 #include "mojo/public/cpp/system/message_pipe.h"
 #include "services/shell/public/cpp/interface_provider.h"
 #include "services/shell/public/cpp/interface_registry.h"
 
 using base::android::AttachCurrentThread;
 using base::android::ConvertJavaStringToUTF8;
+using base::android::JavaParamRef;
 using base::android::ScopedJavaGlobalRef;
 
 namespace content {
 
 namespace {
 
 // Callback passed to the wrapped InterfaceRegistry upon AddInterface(). The
 // InterfaceRegistry will call it to create a registered Java impl.
 void CreateImplAndAttach(
     const ScopedJavaGlobalRef<jobject>& j_scoped_interface_registry,
@@ skipping 69 matching lines @@
 
 void InterfaceRegistryAndroidImpl::RemoveInterface(
     JNIEnv* env,
     const JavaParamRef<jobject>& j_interface_registry,
     const JavaParamRef<jstring>& j_name) {
   std::string name(ConvertJavaStringToUTF8(env, j_name));
   interface_registry_->RemoveInterface(name);
 }
 
 }  // namespace content