Remove now-unnecessary .obj() in Java method calls.

media/midi/midi_input_port_android.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 "media/midi/midi_input_port_android.h"
 
 #include "base/android/jni_array.h"
 #include "base/time/time.h"
 #include "jni/MidiInputPortAndroid_jni.h"
 
 using base::android::JavaParamRef;
 
 namespace media {
 namespace midi {
 
 MidiInputPortAndroid::MidiInputPortAndroid(JNIEnv* env,
                                            jobject raw,
                                            Delegate* delegate)
     : raw_port_(env, raw), delegate_(delegate) {}
 
 MidiInputPortAndroid::~MidiInputPortAndroid() {
   Close();
 }
 
 bool MidiInputPortAndroid::Open() {
   JNIEnv* env = base::android::AttachCurrentThread();
-  return Java_MidiInputPortAndroid_open(env, raw_port_.obj(),
+  return Java_MidiInputPortAndroid_open(env, raw_port_,
                                         reinterpret_cast<jlong>(this));
 }
 
 void MidiInputPortAndroid::Close() {
   JNIEnv* env = base::android::AttachCurrentThread();
-  Java_MidiInputPortAndroid_close(env, raw_port_.obj());
+  Java_MidiInputPortAndroid_close(env, raw_port_);
 }
 
 void MidiInputPortAndroid::OnData(JNIEnv* env,
                                   const JavaParamRef<jobject>& caller,
                                   const JavaParamRef<jbyteArray>& data,
                                   jint offset,
                                   jint size,
                                   jlong timestamp) {
   std::vector<uint8_t> bytes;
   base::android::JavaByteArrayToByteVector(env, data, &bytes);
 
   if (size == 0) {
     return;
   }
 
   // TimeTick's internal value is in microseconds, |timestamp| is in
   // nanoseconds. Both are monotonic.
   base::TimeTicks timestamp_to_pass = base::TimeTicks::FromInternalValue(
       timestamp / base::TimeTicks::kNanosecondsPerMicrosecond);
   delegate_->OnReceivedData(this, &bytes[offset], size, timestamp_to_pass);
 }
 
 bool MidiInputPortAndroid::Register(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace midi
 }  // namespace media