Remove image decoder down sampling

Remove IMAGE_DECODER_DOWN_SAMPLING feature: chrome has never
used/needed this feature and it has no tests.

TEST=Covered by existing image layout tests.
BUG=None

Review URL: https://chromiumcodereview.appspot.com/15466003

git-svn-id: svn://svn.chromium.org/blink/trunk@150783 bbb929c8-8fbe-4397-9dbb-9b2b20218538
media/media-continues-playing-after-replace-source.html crashes flakily in debug Linux.

Widening the expectations for this test to include flaky crashes in Linux debug, which
aren't as common as on Mac/Win, but certainly happen[1].

[1]: http://test-results.appspot.com/dashboards/flakiness_dashboard.html#group=%40ToT%20-%20chromium.org&showExpectations=true&tests=media%2Fmedia-continues-playing-after-replace-source.html

BUG=238082
TBR=ojan@chromium.org

Review URL: https://codereview.chromium.org/15470014

git-svn-id: svn://svn.chromium.org/blink/trunk@150784 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Pushed pause/unpause logic from InspectorInstrumentation.cpp to Debugger and DOMDebugger agents

BUG=232160

Review URL: https://chromiumcodereview.appspot.com/15438003

git-svn-id: svn://svn.chromium.org/blink/trunk@150785 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Pushed main frame check for InspectorInstrumentation::didCommitLoad into agents

BUG=232160

Review URL: https://chromiumcodereview.appspot.com/15316008

git-svn-id: svn://svn.chromium.org/blink/trunk@150786 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Unified agent method signatures for InspectorInstrumentation::didClearWindowObjectInWorld

BUG=232160

Review URL: https://chromiumcodereview.appspot.com/15422004

git-svn-id: svn://svn.chromium.org/blink/trunk@150787 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: Consume F3 keypress' default action when bringing up the "Find" box

BUG=230358
R=vsevik@chromium.org

Review URL: https://codereview.chromium.org/15548002

git-svn-id: svn://svn.chromium.org/blink/trunk@150788 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Error recovery in @supports delcaration.

BUG=140608

Review URL: https://chromiumcodereview.appspot.com/15428003

git-svn-id: svn://svn.chromium.org/blink/trunk@150789 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Timeline: do not duplicate timestamp message in TimeStamp record details

We already replace record title with actual message, so just repeating same
in details looks silly. Default details of script locations are going to be
more useful.

R=yurys@chromium.org

Review URL: https://codereview.chromium.org/15388003

git-svn-id: svn://svn.chromium.org/blink/trunk@150790 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Flaky ASSERT in svg/custom/uri-reference-handling.svg

Only on Mac Debug for the moment. Stack pasted into the associated bug.

BUG=242511
TBR=pdr@chromium.org

Review URL: https://codereview.chromium.org/15567004

git-svn-id: svn://svn.chromium.org/blink/trunk@150791 bbb929c8-8fbe-4397-9dbb-9b2b20218538
inspector/elements/resolve-node-blocked.html flakily crashes on Linux.

This has flaked twice in the last day or two[1]. Useless stack pasted into
http://crbug.com/242516.

[1]: http://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=inspector%2Felements%2Fresolve-node-blocked.html

BUG=242516
TBR=apavlov@chromium.org

Review URL: https://codereview.chromium.org/15563009

git-svn-id: svn://svn.chromium.org/blink/trunk@150792 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Refactoring: removing const_cast from CSSPasrerString

BUG=

Review URL: https://chromiumcodereview.appspot.com/15295011

git-svn-id: svn://svn.chromium.org/blink/trunk@150793 bbb929c8-8fbe-4397-9dbb-9b2b20218538