This adds an implementation of boundsForRange to BrowserAccessibility,
based on the new InlineTextBox role. This can be leveraged to implement
various native APIs on each platform.

Depends on:
1. https://codereview.chromium.org/23983002/ 
2. https://codereview.chromium.org/25943003/

BUG=98977

Review URL: https://codereview.chromium.org/25987002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@232806 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 232806
Update flag description for --enable-inline-signin

BUG=306266

Review URL: https://codereview.chromium.org/50433005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@232807 0039d316-1c4b-4281-b951-d872f2087c98
Docserver: Cleanup to remove the APIListDataSource dependency from
ReferenceResolver, allowing for deleting APIListDataSource.GetAllNames.

R=yoz@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/56083005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@232808 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 232808