Action provider back icon:

![Action provider back icon](https://i.stack.imgur.com/nfRHS.png)

How do i change the back icon generated by the action provider.
I have already changed the back icon in all my activities with HomeAsUpIndicator.
But this generated back icon still with the default black arrow.
The image above show which icon i talk about, when i click on the search icon for example.

In my activity :

```
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar_equipment);
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    getSupportActionBar().setHomeAsUpIndicator(R.drawable.ic_chevron_left_white_48dp);

```

[...]

```
@Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.equipments_menu, menu);

        MenuItem searchItem = menu.findItem(R.id.action_search);
        SearchActionProvider searchActionProvider = new SearchActionProvider(this);
        MenuItemCompat.setActionProvider(searchItem, searchActionProvider);

        return super.onCreateOptionsMenu(menu);
    }

```