Move the plugin placeholder from CppBoundClass to gin::Wrappable

BUG=297480
R=aa@chromium.org,bauerb@chromium.org

Review URL: https://codereview.chromium.org/116163008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243682 0039d316-1c4b-4281-b951-d872f2087c98
Clean up ChildProcessHost unique id generation.

BUG=none
TEST=none

Review URL: https://codereview.chromium.org/126033004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243683 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 243683
[Gtk] Hook up the "Remove" button in the collected cookies dialog.

BUG=168996
TEST=Go to google.com, click on the lock icon, click on "Show cookies", and remove site data from the Allowed pane.

Review URL: https://codereview.chromium.org/128343002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243684 0039d316-1c4b-4281-b951-d872f2087c98
Fixing WebRTC AEC dump tests on Android, disabling DTMF test.

Seems the DTMF test didn't work well after all, when running with Opus.

The AEC tests were broken because they didn't force iSAC.

BUG=181069,332016

Review URL: https://codereview.chromium.org/128353002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243685 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 243685