Support viewForRow in grey_pickerColumnSetToValue matcher

[MontakOleg]

Matcher grey_pickerColumnSetToValue works fine for UIPicker with delegate that implements

• pickerView:titleForRow:forComponent OR
• pickerView:attributedTitleForRow:forComponent

but currently does not work for pickerView:viewForRow:forComponent:reusingView:

I believe it should work with viewForRow, because GREYPickerAction works fine with it and there even test that checks it – PickerViewInteractionTest.testViewForRowDefined.

Unfortunately, I think that this test is broken: corresponding PickerViewController implements both delegate methods – pickerView:titleForRow:forComponent AND pickerView:viewForRow:forComponent:reusingView:, that why test pass.

So, I added support for viewForRow in grey_pickerColumnSetToValue matcher, its just copy-paste from GREYPickerAction and updated test code.

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[tirodkar]

Can you sign the CLA please? @AlbertWang0116 is to look into merging this in. Albert - feel free to patch and test this internally and then close this contribution once the CLA check is passed.

[MontakOleg]

Sure, SLA should be already signed (as mentioned in Checks section)

[MontakOleg]

@AlbertWang0116, did you have a chance to look at this?

[MontakOleg]

@tirodkar, @AlbertWang0116 hi guys, any news here?

[tirodkar]

Will patch and let you know.