Disable ContextLossRaisesInfoBar browser test; it's flaky on multiple platforms.

TBR=zmo@chromium.org, danakj@chromium.org
BUG=324555

Review URL: https://codereview.chromium.org/103753004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@238667 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 238667
SyncFS: Authentication failure should return more info other than 'File error -1'

We've moved the syncfs-specific InitializeApp code below the
FileAPI's OpenFileSystem layer, which caused the loss of
error information when syncfs-specific error has happened.

BUG=325591

Review URL: https://codereview.chromium.org/104163002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@238668 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 238668