Add a AppBannerView class to promote apps

Adds a class that will be used to display native ads for Play Store app
installs.  Mostly follows the mocks specified in the class header, but
some further tweaking will be required to completely make the banner
match specs for padding and such.

* Assets included are temporary.
* Also upstreams the already-reviewed SwipableOverlayView class without any changes.

BUG=341556

Review URL: https://codereview.chromium.org/155613003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249812 0039d316-1c4b-4281-b951-d872f2087c98
[General UI] Updating "Do ot Track" UI to be consistent with that of Hotwording and Clear Browser History.

BUG=339403

Review URL: https://codereview.chromium.org/157073003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249813 0039d316-1c4b-4281-b951-d872f2087c98
Disable StartPageBrowsertests again. It's still flaky.

BUG=339340
TBR=xiyuan@chromium.org, dxie@chromium.org

Review URL: https://codereview.chromium.org/157943002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249814 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 249814
Blink roll 166674:166732

http://build.chromium.org/f/chromium/perf/dashboard/ui/changelog_blink.html?url=/trunk&range=166675:166732&mode=html
TBR=
BUG=

Review URL: https://codereview.chromium.org/157863002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249815 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 249815
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249816 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 249816