Eliminate CreateBooleanValue from test files

BUG=160586

Review URL: https://codereview.chromium.org/397793002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@283665 0039d316-1c4b-4281-b951-d872f2087c98
[ChromeDriver] Subscribe PerformanceLogger to CommandListener interface

BUG=

Review URL: https://codereview.chromium.org/353063005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@283835 0039d316-1c4b-4281-b951-d872f2087c98
[chromedriver] Catch URLError during buildbot wait_for_snapshot step.

BUG=
NOTRY=true

Review URL: https://codereview.chromium.org/399133006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@283884 0039d316-1c4b-4281-b951-d872f2087c98