Get rid of TokenService dependencies from AboutSigninInternals.

We already have plans to add tokens saved in OAuth2TokenService to this page.  This CL only gets rid of TokenService for now.

BUG=238669

Review URL: https://codereview.chromium.org/24265010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227510 0039d316-1c4b-4281-b951-d872f2087c98
Add --disable-compositor-touch-hit-testing flag

Plumb the flag to blink and the compositor.
Disable by default in Android webview for now.

Depends on blink CL: https://src.chromium.org/viewvc/blink?view=rev&revision=158956

BUG=303945

Review URL: https://codereview.chromium.org/25904004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227511 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 227510
[InfoBar] Do not process Android infobar buttons if we are unowned

BUG=283720

Review URL: https://codereview.chromium.org/26270002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227512 0039d316-1c4b-4281-b951-d872f2087c98
Stop downloading a video once it is not displayed anymore in the Files app's gallery.

Before, the video was still prebuffering, which was especially bad for long videos on Drive. This patch forces Chrome to stop buffering by reloading an empty url.

TEST=Partly by browser_tests. Tested also manually. Have images and one long big video in the middle between. Load a picture on Drive, then press right until the video. Then press one more time, the previous video should stop downloading.
BUG=305109

Review URL: https://codereview.chromium.org/26392003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227513 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 227512
SVN changes up to revision 227513