Add a PreTarget handler to dispatch Ctrl-Enter during Find in Page

Allows the FocusManager to dispatch the Ctrl-Enter as an accelerator
rather than having the Textfield handle a regular return.

R=sky@chromium.org
BUG=295753

Review URL: https://codereview.chromium.org/23533077

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227154 0039d316-1c4b-4281-b951-d872f2087c98
[spell] Prepare for switch from TextChecking to TextDecoration

This patch changes spellcheck unit tests to typecast
WebSpellCheckingResult::type into a WebTextCheckingType. The patch enables
Blink to change from WebTextCheckingType to WebTextDecorationType
(https://codereview.chromium.org/25740003).

BUG=302807

Review URL: https://codereview.chromium.org/25786003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227155 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 227154
SVN changes up to revision 227155
Roll ANGLE.

BUG=
TEST=tree
TBR=kbr@chromium.org

Review URL: https://codereview.chromium.org/26044002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227156 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 227156