Add `cdp.browser_control`: high-level browser automation API #395

Job	Run time
test-review-and-execution (chromium, headed)	43s
test-review-and-execution (webkit, headed)	1m 7s
test-review-and-execution (webkit, headless)	55s
test-review-and-execution (firefox, headless)	41s
test-review-and-execution (chromium, headless)	44s
test-review-and-execution (firefox, headed)	44s
test-coverage-review	4s
	4m 58s

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