Fix fast/css tests for Win7/DirectWrite by explicitly setting height

The height of text and form control can vary slightly depending on
alignment and baseline. Explicitly set height for CSS tests that do not
test nor depend on text rendering.

BUG=378610
R=dglazkov@chromium.org, eseidel@chromium.org

Review URL: https://codereview.chromium.org/323293002

git-svn-id: svn://svn.chromium.org/blink/trunk@176035 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Qualify the generated includes in core (partial).

This CL takes care the accessibility, animation and css subdirs under core. There's one exception that css/CSSTokenizer-in.cpp didn't change because of a coding style issue.

BUG=381876

Review URL: https://codereview.chromium.org/331633003

git-svn-id: svn://svn.chromium.org/blink/trunk@176036 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Expose showModalDialog runtime flag via WebRuntimeFeatures

BUG=none
R=ojan@chromium.org,atwilson@chromium.org

Review URL: https://codereview.chromium.org/329873002

git-svn-id: svn://svn.chromium.org/blink/trunk@176037 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Consolidate Glyph and GlyphBufferGlyph.

These are always equivalent since the WinCE case was dropped over a year ago:
https://chromiumcodereview.appspot.com/13901012

BUG=383594

Review URL: https://codereview.chromium.org/325283002

git-svn-id: svn://svn.chromium.org/blink/trunk@176039 bbb929c8-8fbe-4397-9dbb-9b2b20218538