gpu: Add Android build fingerprint to shader hash
gpu: Add Android build fingerprint to shader hash

BUG=486117

This is used for the disk cache and avoids potential driver bugs from
using an incompatible shader binary (although really glProgramBinary
should handle it and fail).

NOTRY=True

Review URL: https://codereview.chromium.org/1169923006

Cr-Commit-Position: refs/heads/master@{#333533}
(cherry picked from commit 32b8cc447f8542f6463120af1eb33666275e2f2c)

Review URL: https://codereview.chromium.org/1176993002.

Cr-Commit-Position: d34a0005849006230ae7ffb1a9693419810a06bc@{#266}
Cr-Branched-From: 40cda19e609fd36fbf5fe489055423e611631abc@{#330231}

Fireblend/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,Fireblend/chromium-crosswalk,Fireblend/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,Fireblend/chromium-crosswalk,Fireblend/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,Fireblend/chromium-crosswalk,Fireblend/chromium-crosswalk,Fireblend/chromium-crosswalk,Fireblend/chromium-crosswalk