Upgrade Blink to milliseconds-based last modified filetimes, part 5.

Switch Blink to use a milliseconds-based WebFileInfo::modificationTime
field instead, leaving the temporary field modificationTimeMS as unused
until the embedder has stopped expecting it (see next patch in the series.)

With the WebFileInfo switch back to modificationTime, follow up
FileMetadata and change its modification time field back to
"modificationTime"; it now/still being milliseconds-based.

This patch is the fifth one in the following series,

1: [blink] add WebFileInfo::modificationTimeMS [ https://codereview.chromium.org/873723004/ ]
2: [chromium] fill in modificationTimeMS [ https://codereview.chromium.org/884413002/ ] 
3: [blink] make use of modificationTimeMS [ https://codereview.chromium.org/884393002/ ]
4: [chromium] set modificationTime to something msec-based [ https://codereview.chromium.org/862203003/ ]
5: [blink] *this one* [ https://codereview.chromium.org/882343002/ ]
6: [chromium] stop setting modificationTimeMS [ https://codereview.chromium.org/890523002/ ]
7: [blink] remove modificationTimeMS [ https://codereview.chromium.org/869613005/ ]

R=mkwst
BUG=451747

Review URL: https://codereview.chromium.org/882343002

git-svn-id: svn://svn.chromium.org/blink/trunk@189838 bbb929c8-8fbe-4397-9dbb-9b2b20218538
8 files changed
tree: 0b8fe339f26d501f0c0ba8a11504175483e9b804
  1. third_party/