Clean script a bit
Clean script a bit

Review URL: http://codereview.chromium.org/7618033
ericmckean/chromedevtools,AlexRee/chromedevtools,AlexRee/chromedevtools,ericmckean/chromedevtools,AlexRee/chromedevtools,AlexRee/chromedevtools,ericmckean/chromedevtools,vpupkin/chromedevtools,vpupkin/chromedevtools,AlexRee/chromedevtools,vpupkin/chromedevtools,ericmckean/chromedevtools,vpupkin/chromedevtools,ericmckean/chromedevtools,vpupkin/chromedevtools