Fix crashes when INPUT with author ShadowRoots updates its value.

We should not call this->updateView in InputType classes. We should call
InputTypeView::updateView correctly via HTMLInputElement instance.

Note that InputType inherits InputTypeView, and another InputTypeView is used
when author ShadowRoots are attached.

BUG=345188
TEST=automated

Review URL: https://codereview.chromium.org/177533009

git-svn-id: svn://svn.chromium.org/blink/trunk@167754 bbb929c8-8fbe-4397-9dbb-9b2b20218538