Revert "[DevTools] HAR: add "connection" field."

This reverts r156364. I believe this broke
inspector-protocol/runtime-getProperties.html on Mac.

TBR=eustas@chromium.org
BUG=276262

Review URL: https://codereview.chromium.org/22968006

git-svn-id: svn://svn.chromium.org/blink/trunk@156386 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: add frame around the screencast frame.

R=vsevik@chromium.org

Review URL: https://codereview.chromium.org/23005012

git-svn-id: svn://svn.chromium.org/blink/trunk@156387 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Revert "Revert "[DevTools] HAR: add "connection" field.""

This reverts r156386, apparently r156364 is not to blame for broken
inspector-protocol/runtime-getProperties.html.

TBR=eustas@chromium.org
BUG=276262

Review URL: https://codereview.chromium.org/23273003

git-svn-id: svn://svn.chromium.org/blink/trunk@156388 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Gardening: inspector-protocol/runtime-getProperties.html expectations

TBR=eustas@chromium.org
BUG=276262

Review URL: https://codereview.chromium.org/23068012

git-svn-id: svn://svn.chromium.org/blink/trunk@156389 bbb929c8-8fbe-4397-9dbb-9b2b20218538
[DOM4] Have ProcessingInstruction inherit CharacterData

Have ProcessingInstruction inherit CharacterData as per the latest DOM4
specification:
http://dom.spec.whatwg.org/#processinginstruction

Previously, ProcessingInstruction was inheriting from Node as per DOM
Level 3.

Firefox already follows DOM4 but not IE10.
This change leads to less code duplication.

BUG=275465
R=haraken@chromium.org, jochen@chromium.org

Review URL: https://codereview.chromium.org/22911019

git-svn-id: svn://svn.chromium.org/blink/trunk@156390 bbb929c8-8fbe-4397-9dbb-9b2b20218538