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Adam Comella 35e75c8cdf Android: Fix WebView crash for links of unknown schemes

Summary:
When tapping on a link in a WebView with an unknown scheme, the app would crash. For example, if you have the link "something://example/" but your device doesn't have anything to handle the "something" scheme, the app would crash when the user clicks on the link. This change handles the exception to prevent the app from crashing. Instead, the click is a no-op and the WebView doesn't navigate anywhere.

**Test plan (required)**

Verified the app no longer crashes when clicking on unknown schemes in a test app. Also, my team uses this change in our app.

Adam Comella
Microsoft Corp.
Closes https://github.com/facebook/react-native/pull/10903

Differential Revision: D4226371

Pulled By: mkonicek

fbshipit-source-id: a6d3957806c6063e74fe055b0979cb9d1ce40e51

2016-11-23 04:43:26 -08:00