Adding binary files for platform_keys tests.

Was reviewed here: https://codereview.chromium.org/884073002/
Manually landing the binary files separately as 'git cl upload' chokes on them.

BUG=450167
TBR=kaliamoorthi@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/927843002

Cr-Commit-Position: refs/heads/master@{#316389}

chrome/test/data/extensions/api_test/platform_keys/client_1_issuer_dn.der

+01

chrome/test/data/extensions/api_test/platform_keys/data

+hello world
\ No newline at end of file

chrome/test/data/extensions/api_test/platform_keys/signature_nohash_pkcs

+jyòd?^¥æ«¼d«k|VÂüõÐ#!pYÚÅo_«šn7ÂÏJê5˜
æùs‡jO9HÝTFšÂËôrN Úq7ÍóòэkeíòxÇ~9­)s7·`­¯â…Lº…Õ¢ÄY[•ÑÁùŸƒ\ÕÔ§Ú |µžÛž/¢Ä#Ÿ/=„ÇȪ&ÎÖTx+xx"cµk ÛóþWÐuW}ðá49|¬ïɆìÓZÜ)VãUß­±'†6¦`b‡îubÒïùn™wêƸμJŠaã(†U˜Q„䆲@¥[1EÎòè² È`Š®«”oû0Gqw]¿'”üöâŒMÐÆ>*»Ýډ
\ No newline at end of file