fix chromedriver executable path

functional_tests/base.py

@@ -18,8 +18,8 @@ class FunctionalTest(StaticLiveServerTestCase):
         chrome_options.add_argument('--no-sandbox')
         chrome_options.add_argument('--headless')
         chrome_options.add_argument('disable-gpu')
-        
-        self.browser = webdriver.Chrome("./chromedriver", chrome_options=chrome_options)
+
+        self.browser = webdriver.Chrome(chrome_options=chrome_options)
         self.browser.implicitly_wait(3)
 
     def tearDown(self):

geckodriver.log

@@ -2178,3 +2178,11 @@ See /usr/include/servers/bootstrap_defs.h for the error codes.
 1573576498978	Marionette	INFO	Listening on port 54267
 1573576499099	Marionette	WARN	TLS certificate errors will be ignored for this session
 1573576501082	Marionette	INFO	Stopped listening on port 54267
+1573611495734	mozrunner::runner	INFO	Running command: "/Applications/Firefox.app/Contents/MacOS/firefox-bin" "-marionette" "-foreground" "-no-remote" "-profile" "/var/folders/vz/q0bxc90x711c_lq3g37rtv2w0000gn/T/rust_mozprofile.vVa7w6upH8gM"
+1573611498569	addons.webextension.screenshots@mozilla.org	WARN	Loading extension 'screenshots@mozilla.org': Reading manifest: Invalid extension permission: mozillaAddons
+1573611498575	addons.webextension.screenshots@mozilla.org	WARN	Loading extension 'screenshots@mozilla.org': Reading manifest: Invalid extension permission: telemetry
+1573611498575	addons.webextension.screenshots@mozilla.org	WARN	Loading extension 'screenshots@mozilla.org': Reading manifest: Invalid extension permission: resource://pdf.js/
+1573611498575	addons.webextension.screenshots@mozilla.org	WARN	Loading extension 'screenshots@mozilla.org': Reading manifest: Invalid extension permission: about:reader*
+1573611505204	Marionette	INFO	Listening on port 54972
+1573611505231	Marionette	WARN	TLS certificate errors will be ignored for this session
+1573611507037	Marionette	INFO	Stopped listening on port 54972