net-internals: hide 'original proxy' if equal to effective proxy

When both are equal the display is somewhat visually noisy, so hide the original
proxy div if the strings are equal and show it again when they begin to differ.
You can test this by pressing 'reapply' on the proxy page, which will
temporarily cause the original and effective proxy to differ.

BUG=235998
TEST=adhoc

Review URL: https://codereview.chromium.org/61953004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@236137 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 236137
Avoid SEGFAULT when scheduler is stopped as part of sync cycle.

Sync cycle might receive response from server that causes scheduler to
stop and draws pending_configure_params_ invalid. Check started_
before dereferencing pending_configure_params_ to avoid SEGFAULT.

BUG=320738

Review URL: https://codereview.chromium.org/62263003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@236138 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 236138