[DevTools] Extended RemoteDebuggingTest.RemoteDebugger with additional json protocol tests.

BUG=313168
TEST=RemoteDebuggingTest.RemoteDebugger

Review URL: https://codereview.chromium.org/54333004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@232973 0039d316-1c4b-4281-b951-d872f2087c98
telemetry: make mostly_smooth in smoothness metric a float value.

The mostly_smooth metric doesn't show up on the dashboard,
because it is a boolean value (False/True). Switch to float (0.0/1.0).

R=dtu@chromium.org
BUG=

Review URL: https://codereview.chromium.org/54793006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@232974 0039d316-1c4b-4281-b951-d872f2087c98
Fix GetPairedOutputParameters
to not set any of the output parameters unless all of them are valid.
Before we could set e.g. the session_id but return false.

BUG=315051
R=xians@chromium.org

Review URL: https://codereview.chromium.org/59763002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@232975 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 232974
SVN changes up to revision 232975