Inroduce toSVGInlineTextBox, and use it.

BUG=

Review URL: https://chromiumcodereview.appspot.com/18309003

git-svn-id: svn://svn.chromium.org/blink/trunk@153345 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Rename DOMCoreException to DOMException

Now that there is only on DOM exception we can drop the "core" from
the name.

BUG=None
TBR=haraken@chromium.org

Review URL: https://codereview.chromium.org/18324008

git-svn-id: svn://svn.chromium.org/blink/trunk@153346 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Remove SVGStyledLocatableElement class

Remove SVGStyledLocatableElement class and have SVGGraphicsElement
inherit SVGStyledElement directly instead. SVGStyledLocatableElement
is no longer needed and according to the specification, SVGGraphicsElement
should inherit SVGStyledElement (actually SVGElement once we merge
SVGStyledElement into SVGElement).

Review URL: https://chromiumcodereview.appspot.com/18334002

git-svn-id: svn://svn.chromium.org/blink/trunk@153347 bbb929c8-8fbe-4397-9dbb-9b2b20218538