Added support for versioning of layout test results of run-webkit-tests runs.
And to generate a dashboard of all archived layout test results.

On local runs of run-webkit-tests, the results are overwritten. If required, we cannot refer to the older
generated which might be required many times.
Instead we can archive the results by adding a time-stamp
to the folder name on each run which will help us track the change in results with each iteration of results run.

And also we can generate a dashboard out of all the archived results to validate each individual test over many iterations of testing.

BUG=305508

Review URL: https://codereview.chromium.org/339623002

git-svn-id: svn://svn.chromium.org/blink/trunk@179332 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Don't notify back to the RenderViewImpl that an inspector setting changed.

This makes no sense, since the only way for them to have changed is
for the RenderViewImpl to have set it in the first place. This can also
cause an infinite loop of updating back and forth.

BUG=398751

Review URL: https://codereview.chromium.org/435663002

git-svn-id: svn://svn.chromium.org/blink/trunk@179333 bbb929c8-8fbe-4397-9dbb-9b2b20218538