In permission review mode, always request user's consent to toggle BT.

Bug: 33155221
Test: Manual: flash the watch, check that the consent UI was
      displayed in both apps (the one with CompileSDK=21 and
      TargetSDK=21, and the one with CompileSDK=25 and
      TargetSDK=25).
Change-Id: Ic1ed987bbaf282892a2aef354a8ca0add2c829ba
diff --git a/services/core/java/com/android/server/BluetoothManagerService.java b/services/core/java/com/android/server/BluetoothManagerService.java
index 86bbca7..36ef3e9 100644
--- a/services/core/java/com/android/server/BluetoothManagerService.java
+++ b/services/core/java/com/android/server/BluetoothManagerService.java
@@ -717,9 +717,8 @@
             mContext.enforceCallingOrSelfPermission(BLUETOOTH_ADMIN_PERM,
                     "Need BLUETOOTH ADMIN permission");
 
-            if (!isEnabled() && mPermissionReviewRequired
-                    && startConsentUiIfNeeded(packageName, callingUid,
-                            BluetoothAdapter.ACTION_REQUEST_ENABLE)) {
+            if (!isEnabled() && mPermissionReviewRequired) {
+                startConsentUi(packageName, callingUid, BluetoothAdapter.ACTION_REQUEST_ENABLE);
                 return false;
             }
         }
@@ -753,9 +752,8 @@
             mContext.enforceCallingOrSelfPermission(BLUETOOTH_ADMIN_PERM,
                     "Need BLUETOOTH ADMIN permission");
 
-            if (isEnabled() && mPermissionReviewRequired
-                    && startConsentUiIfNeeded(packageName, callingUid,
-                            BluetoothAdapter.ACTION_REQUEST_DISABLE)) {
+            if (isEnabled() && mPermissionReviewRequired) {
+                startConsentUi(packageName, callingUid, BluetoothAdapter.ACTION_REQUEST_DISABLE);
                 return false;
             }
         }
@@ -775,8 +773,8 @@
         return true;
     }
 
-    private boolean startConsentUiIfNeeded(String packageName,
-            int callingUid, String intentAction) throws RemoteException {
+    private void startConsentUi(String packageName, int callingUid, String intentAction)
+            throws RemoteException {
         try {
             // Validate the package only if we are going to use it
             ApplicationInfo applicationInfo = mContext.getPackageManager()
@@ -788,16 +786,12 @@
                         + " not in uid " + callingUid);
             }
 
-            // Legacy apps in permission review mode trigger a user prompt
-            if (applicationInfo.targetSdkVersion < Build.VERSION_CODES.M) {
-                Intent intent = new Intent(intentAction);
-                mContext.startActivity(intent);
-                return true;
-            }
+            // Permission review mode, trigger a user prompt
+            Intent intent = new Intent(intentAction);
+            mContext.startActivity(intent);
         } catch (PackageManager.NameNotFoundException e) {
             throw new RemoteException(e.getMessage());
         }
-        return false;
     }
 
     public void unbindAndFinish() {