DevTools: Fix illegal argument types in ViewportControl

R=lushnikov

Review URL: https://codereview.chromium.org/334313002

git-svn-id: svn://svn.chromium.org/blink/trunk@176302 bbb929c8-8fbe-4397-9dbb-9b2b20218538
ThreadableWebSocketChannelClientWrapper don't need suspend / resume code.

As the WebSocket class handles suspend / resume, we can remove the suspend /
resume code from ThreadableWebSocketChannelClientWrapper.

BUG=384238
R=tyoshino

Review URL: https://codereview.chromium.org/333223002

git-svn-id: svn://svn.chromium.org/blink/trunk@176303 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Change shadow style's scope from Shadow Host to Shadow Root

No visible change, test expectation change is expected.

Scope of styles in shadow tree used to be its shadow host
for ease of checking the style against :host etc.

This caused code complexity for checking against boundary
breaking CSS selector rules (e.g. ::content, /deep/).
Changing the scope to its shadow root will simplify some
condition checks.

This is a step towards fixing issue 355674.

BUG=355674
TEST=pass all layout tests

Review URL: https://codereview.chromium.org/313303002

git-svn-id: svn://svn.chromium.org/blink/trunk@176304 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: fixed UI glitches of inlined DataGrid.

1) fix inlined DataGrid columns widths
2) fix left border
3) do not show corner column

BUG=

Review URL: https://codereview.chromium.org/334183003

git-svn-id: svn://svn.chromium.org/blink/trunk@176305 bbb929c8-8fbe-4397-9dbb-9b2b20218538