GitLab

This moves the favicon bitmap data to a new table: favicon_frames.
The favicon_frame table contains columns:
icon_id
bitmap_data
last_updated
width
height

For favicons of type .ico, a single entry in the favicons table will have multiple associated frames.
For favicons of other image types, there should be a single frame for each favicon id.

Bug=138553
Test=ThumbnailDatabaseTest.*, HistoryBackendTest.* pass

Review URL: https://chromiumcodereview.appspot.com/10815068

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@152367 0039d316-1c4b-4281-b951-d872f2087c98