android: Use _FILE_OFFSET_BITS after all (undo dc3d480305b2)
android: Use _FILE_OFFSET_BITS after all (undo dc3d480305b2)

The combination of _FILE_OFFSET_BITS=64 and unified headers with API <
21 hiding mmap() was a bug with the unified headers. It should be fixed
before NDK r15 is final. See https://crbug.com/711786.

Bug: crashpad:30
Change-Id: I744398899ab99df7afc489ad2e95911624c5e78a
Reviewed-on: https://chromium-review.googlesource.com/478992
Reviewed-by: Joshua Peraza <f5809a5e35ec7e1bd0e25cb0a0b68bb433cf6f17@chromium.org>

chromium/mini_chromium,chromium/mini_chromium,chromium/mini_chromium