Move two skia arrays to read-only data segment

The BCP47FromLanguageID and UnicodeFromMacRoman arrays are logically
const but were not marked as such. Marking them as const lets the
compiler/linker store them in the read-only data segment, which is
strictly better than being in read/write memory. This change moves about
3,000 bytes from the .data to .rdata segment in both chrome.dll and
chrome_child.dll.

BUG=677351

Change-Id: I85ff44d61aa232cf29178833fd2bb2e004032b9e
Reviewed-on: https://skia-review.googlesource.com/6424
Reviewed-by: Brian Salomon <bsalomon@google.com>
Reviewed-by: Bruce Dawson <brucedawson@chromium.org>
Commit-Queue: Mike Klein <mtklein@chromium.org>
1 file changed