Handle crashing Pepper plug-ins the same as crashing NPAPI plug-ins.

BUG=151895

Review URL: https://chromiumcodereview.appspot.com/10956065

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@158364 0039d316-1c4b-4281-b951-d872f2087c98
void PpapiPluginProcessHost::OnChannelError() {
  DVLOG(1) << "PpapiPluginProcessHost" << (is_broker_ ? "[broker]" : "")
           << "::OnChannelError()";
  CancelRequests();
}

void PpapiPluginProcessHost::OnChannelError() {
  DVLOG(1) << "PpapiPluginProcessHost" << (is_broker_ ? "[broker]" : "")
           << "::OnChannelError()";
  CancelRequests();
}
