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

media/midi/midi_device_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_device_android.h"
 
 #include <string>
 
 #include "base/android/jni_string.h"
 #include "jni/MidiDeviceAndroid_jni.h"
@@ skipping 34 matching lines @@
     jobject port = env->GetObjectArrayElement(raw_output_ports.obj(), i);
     output_ports_.push_back(new MidiOutputPortAndroid(env, port));
   }
 }
 
 MidiDeviceAndroid::~MidiDeviceAndroid() {}
 
 std::string MidiDeviceAndroid::GetManufacturer() {
   JNIEnv* env = base::android::AttachCurrentThread();
   return ConvertMaybeJavaString(
-      env, Java_MidiDeviceAndroid_getManufacturer(env, raw_device_.obj()));
+      env, Java_MidiDeviceAndroid_getManufacturer(env, raw_device_));
 }
 
 std::string MidiDeviceAndroid::GetProductName() {
   JNIEnv* env = base::android::AttachCurrentThread();
   return ConvertMaybeJavaString(
-      env, Java_MidiDeviceAndroid_getProduct(env, raw_device_.obj()));
+      env, Java_MidiDeviceAndroid_getProduct(env, raw_device_));
 }
 
 std::string MidiDeviceAndroid::GetDeviceVersion() {
   JNIEnv* env = base::android::AttachCurrentThread();
   return ConvertMaybeJavaString(
-      env, Java_MidiDeviceAndroid_getVersion(env, raw_device_.obj()));
+      env, Java_MidiDeviceAndroid_getVersion(env, raw_device_));
 }
 
 }  // namespace midi
 }  // namespace media