Add test for PPB_TCPSocket_1_0.

BUG=262601,296668
TEST=newly added test

Review URL: https://codereview.chromium.org/24089007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226575 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 226575
Geolocation: add UMA histograms for events and response codes.

It is currently unknown whether NetworkLocationRequest is actually reliable.
This adds UMA histograms for the server response codes, and for some
significant events in the lifecycle of NetworkLocationRequest.

Review URL: https://codereview.chromium.org/25262003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226577 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 226577