Simplify new window creation, do much more of the work in core.

BUG=none

Review URL: https://chromiumcodereview.appspot.com/17923002

git-svn-id: svn://svn.chromium.org/blink/trunk@153272 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Curate TestExpectations.

-Mainly, move slow but passing lines to the top of the file into their own section.
-Keep slow lines that are failing on a different platform grouped with the failure
line instead of in the slow section at the top.
-Remove some useless comments and whitespace.

TBR=adamk@chromium.org

Review URL: https://chromiumcodereview.appspot.com/18089022

git-svn-id: svn://svn.chromium.org/blink/trunk@153273 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Fix clang build.

TBR=eseidel

Review URL: https://codereview.chromium.org/18245003

git-svn-id: svn://svn.chromium.org/blink/trunk@153274 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Simplify StyleCustomFilterProgramCache's lifetime.

It was lazily instantiated, but the size of an empty HashTable is already pretty small, so I thought it might be good to straightify this.

R=abarth
BUG=237268

Review URL: https://chromiumcodereview.appspot.com/18223009

git-svn-id: svn://svn.chromium.org/blink/trunk@153275 bbb929c8-8fbe-4397-9dbb-9b2b20218538
xmlDocPtrForString shouldn't use bloatedCharacters()

libxml can handle different encodings. We don't need to upconvert to UTF-16
just to pass the data to libxml.

R=pdr
BUG=254708

Review URL: https://chromiumcodereview.appspot.com/18223008

git-svn-id: svn://svn.chromium.org/blink/trunk@153276 bbb929c8-8fbe-4397-9dbb-9b2b20218538