[Password Manager] Restrict IsTheHotNewBubbleUIEnabled to Aura and Mac
ChromePasswordManagerClient::IsTheHotNewBubbleUIEnabled needs to return false on Android, because there is no bubble for Android.
Unintentionally, I (vabr) misinformed dconnelly in https://codereview.chromium.org/
444603003/diff/20001/chrome/browser/password_manager/chrome_password_manager_client.cc#newcode357 that IsTheHotNewBubbleUIEnabled is not compiled on Android at all, whereas the truth is, it is only not compiled for Androd WebView.
As a consequence, IsTheHotNewBubbleUIEnabled started to return possibly true on Android after https://codereview.chromium.org/
505123002 landed, causing a crash on the bots.
BUG=328847,409622
Review URL: https://codereview.chromium.org/
529743002
Cr-Commit-Position: refs/heads/master@{#292884}