Remove InputRouterTest

There is and will be but one implementation of InputRouter for the forseeable
future.  Remove the base InputRouterTest, moving all functionality to
ImmediateInputRouterTest.  This is prep work for renaming ImmediateInputRouter
to InputRouterImpl.

BUG=302663
TBR=jam@chromium.org

Review URL: https://codereview.chromium.org/89083002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237826 0039d316-1c4b-4281-b951-d872f2087c98
Password manager: Enable reauthentication dialog by default.

BUG=303113

Review URL: https://codereview.chromium.org/92023002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237827 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 237827
Refactor SingleThreadProxy to reduce the call invocation for LayerTreeHost::contents_texture_manager().

Review URL: https://codereview.chromium.org/93773002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237828 0039d316-1c4b-4281-b951-d872f2087c98
DevTools: Fix crash in beforeunload handling when worker window is closed.

BUG=323031

Review URL: https://codereview.chromium.org/95053003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237829 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 237829