Make ManifestUpgradeDetector correctly fetch "icon Murmur2 hash" if hash is big
Murmur2 hashes can take on values up to 2^64 - 1. 2^64 - 1 is larger than
Long#MAX_VALUE. This CL introduces
WebApkMetaDataUtils#getIconMurmur2HashFromMetaData() to extract the hash from
the meta data in the WebAPK's Android Manifest.
BUG=
659348
TEST=WebApkMetaDataUtilsTest#testGetIconMurmur2HashFromMetaData,
ManifestUpgradeDetectorFetcherTest.testIconMurmur2HashParsing
Committed:
https://crrev.com/aaab0997ef06ae47b24670b0510a5e67ce5ff7ec
Cr-Commit-Position: refs/heads/master@{#428140}