fix driver references

Author: titusfortner

examples/ruby/spec/browsers/chrome_spec.rb

@@ -124,8 +124,8 @@
     end
 
     it 'gets and sets network conditions' do
-      @driver.network_conditions = {offline: false, latency: 100, throughput: 200}
-      expect(@driver.network_conditions).to eq(
+      driver.network_conditions = {offline: false, latency: 100, throughput: 200}
+      expect(driver.network_conditions).to eq(
         'offline' => false,
         'latency' => 100,
         'download_throughput' => 200,
@@ -134,22 +134,22 @@
     end
 
     it 'gets the browser logs' do
-      @driver.navigate.to 'https://www.selenium.dev/selenium/web/'
+      driver.navigate.to 'https://www.selenium.dev/selenium/web/'
       sleep 1
-      logs = @driver.logs.get(:browser)
+      logs = driver.logs.get(:browser)
 
       expect(logs.first.message).to include 'Failed to load resource'
     end
 
     it 'sets permissions' do
-      @driver.navigate.to 'https://www.selenium.dev/selenium/web/'
+      driver.navigate.to 'https://www.selenium.dev/selenium/web/'
 
-      @driver.add_permission('camera', 'denied')
-      @driver.add_permissions('clipboard-read' => 'denied', 'clipboard-write' => 'prompt')
+      driver.add_permission('camera', 'denied')
+      driver.add_permissions('clipboard-read' => 'denied', 'clipboard-write' => 'prompt')
 
-      expect(permission('camera')).to eq('denied')
-      expect(permission('clipboard-read')).to eq('denied')
-      expect(permission('clipboard-write')).to eq('prompt')
+      expect(permission(driver, 'camera')).to eq('denied')
+      expect(permission(driver, 'clipboard-read')).to eq('denied')
+      expect(permission(driver, 'clipboard-write')).to eq('prompt')
     end
   end
 
@@ -163,8 +163,8 @@ def chrome_location
     ENV['CHROME_BIN'] = finder.browser_path
   end
 
-  def permission(name)
-    @driver.execute_async_script('callback = arguments[arguments.length - 1];' \
+  def permission(driver, name)
+    driver.execute_async_script('callback = arguments[arguments.length - 1];' \
                                  'callback(navigator.permissions.query({name: arguments[0]}));', name)['state']
   end
 end