Declare //ui template instantiations so that all know about it

There were code in ui/views that didn't know about the class
property type specialization for ::wm::ShadowElevation. This was
solved by the linker later since there was other instances
of the right template.

In jumbo builds the compiler noticed that there was code
trying to access the template before the specialization was known
and that is a C++ error so the code did not compile.

The fix is to declare the specialization so that all code knows
about it.

Bug: 773275
Change-Id: Ifa4bc0088a8525a7a9907037d746ecb542dfbf71
Reviewed-on: https://chromium-review.googlesource.com/824665
Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: Daniel Bratell <bratell@opera.com>
Cr-Commit-Position: refs/heads/master@{#523903}
1 file changed