Update filter blending to match spec draft.

~ Stop blending filter operations which contain a Reference Filter.
~ Blend filter operations of different lengths is they share a common
  prefix.

BUG=311280

Review URL: https://codereview.chromium.org/64123005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235564 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 235564
Don't convert XI_Motion event from touch device to TouchEvent

X sometimes sends an emulated XI_Motion event right before
XI_TouchBegin. We should not convert this XI_Motion event into
any TouchEvent.

BUG=311762
TEST=Make sure no touch move before touch press on pixel.

Review URL: https://codereview.chromium.org/74003004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235565 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 235565
<webview>: Centralize StoragePartition config parsing from Site URL

If this changes in the future, we should have fewer places that we need to
update by centralizing that code in one place in the chrome layer.

BUG=319902

Review URL: https://codereview.chromium.org/64343003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235566 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 235566