bluetooth: Initial JNI setup for device/bluetooth.

device/bluetooth/bluetooth_adapter_android.cc

Index: device/bluetooth/bluetooth_adapter_android.cc
diff --git a/device/bluetooth/bluetooth_adapter_android.cc b/device/bluetooth/bluetooth_adapter_android.cc
index 9ca54df3e5630dc6f6aefb51216186dfa826fd9c..0d4f1408f5bddf7bdd1db90218a2c122b35f9edc 100644
--- a/device/bluetooth/bluetooth_adapter_android.cc
+++ b/device/bluetooth/bluetooth_adapter_android.cc
@@ -4,10 +4,14 @@
 
 #include "device/bluetooth/bluetooth_adapter_android.h"
 
+#include "base/android/jni_android.h"
 #include "base/sequenced_task_runner.h"
 #include "base/single_thread_task_runner.h"
 #include "base/thread_task_runner_handle.h"
 #include "device/bluetooth/bluetooth_advertisement.h"
+#include "jni/BluetoothAdapter_jni.h"
+
+using base::android::AttachCurrentThread;
 
 namespace device {
 
@@ -18,11 +22,22 @@ base::WeakPtr<BluetoothAdapter> BluetoothAdapter::CreateAdapter(
 }
 
 // static
-base::WeakPtr<BluetoothAdapter> BluetoothAdapterAndroid::CreateAdapter() {
+base::WeakPtr<BluetoothAdapterAndroid>
+BluetoothAdapterAndroid::CreateAdapter() {
   BluetoothAdapterAndroid* adapter = new BluetoothAdapterAndroid();
   return adapter->weak_ptr_factory_.GetWeakPtr();
 }
 
+// static
+bool BluetoothAdapterAndroid::RegisterJNI(JNIEnv* env) {
+  return RegisterNativesImpl(env);  // Generated in BluetoothAdapter_jni.h
+}
+
+bool BluetoothAdapterAndroid::HasBluetoothPermission() const {
+  return Java_BluetoothAdapter_hasBluetoothPermission(
+      AttachCurrentThread(), j_bluetooth_adapter_.obj());
+}
+
 std::string BluetoothAdapterAndroid::GetAddress() const {
   return address_;
 }
@@ -108,6 +123,8 @@ void BluetoothAdapterAndroid::RegisterAdvertisement(
 }
 
 BluetoothAdapterAndroid::BluetoothAdapterAndroid() : weak_ptr_factory_(this) {
+  j_bluetooth_adapter_.Reset(Java_BluetoothAdapter_create(
+      AttachCurrentThread(), base::android::GetApplicationContext()));
 }
 
 BluetoothAdapterAndroid::~BluetoothAdapterAndroid() {