Construct USB descriptors over explicit values.

device/usb/usb_configuration_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 "device/usb/usb_configuration_android.h"
 
 #include "device/usb/usb_interface_android.h"
 #include "jni/ChromeUsbConfiguration_jni.h"
 
 using base::android::ScopedJavaLocalRef;
 
 namespace device {
 
 // static
 bool UsbConfigurationAndroid::RegisterJNI(JNIEnv* env) {
   return RegisterNativesImpl(env);  // Generated in ChromeUsbConfiguration_jni.h
 }
 
 // static
 UsbConfigDescriptor UsbConfigurationAndroid::Convert(
     JNIEnv* env,
     const base::android::JavaRef<jobject>& usb_configuration) {
   ScopedJavaLocalRef<jobject> wrapper =
       Java_ChromeUsbConfiguration_create(env, usb_configuration.obj());
 
-  UsbConfigDescriptor config;
-  config.configuration_value =
-      Java_ChromeUsbConfiguration_getConfigurationValue(env, wrapper.obj());
-  config.self_powered =
-      Java_ChromeUsbConfiguration_isSelfPowered(env, wrapper.obj());
-  config.remote_wakeup =
-      Java_ChromeUsbConfiguration_isRemoteWakeup(env, wrapper.obj());
-  config.maximum_power =
-      Java_ChromeUsbConfiguration_getMaxPower(env, wrapper.obj());
+  UsbConfigDescriptor config(
+      Java_ChromeUsbConfiguration_getConfigurationValue(env, wrapper.obj()),
+      Java_ChromeUsbConfiguration_isSelfPowered(env, wrapper.obj()),
+      Java_ChromeUsbConfiguration_isRemoteWakeup(env, wrapper.obj()),
+      Java_ChromeUsbConfiguration_getMaxPower(env, wrapper.obj()));
 
   ScopedJavaLocalRef<jobjectArray> interfaces =
       Java_ChromeUsbConfiguration_getInterfaces(env, wrapper.obj());
   jsize count = env->GetArrayLength(interfaces.obj());
   config.interfaces.reserve(count);
   for (jsize i = 0; i < count; ++i) {
     ScopedJavaLocalRef<jobject> interface(
         env, env->GetObjectArrayElement(interfaces.obj(), i));
     config.interfaces.push_back(UsbInterfaceAndroid::Convert(env, interface));
   }
 
   return config;
 }
 
 }  // namespace device