use no-sandbox option for chrome and adjust permissions for /dev/shm for travis build

.travis.yml

@@ -26,6 +26,7 @@ before_install:
   - sudo sh -c 'echo "deb http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list'
   - sudo apt-get update
   - sudo apt-get install google-chrome-stable
+  - sudo chmod 1777 /dev/shm
 before_script:
   - sh -e /etc/init.d/xvfb start
   - export DISPLAY=:99.0

lib/capybara/spec/session/fill_in_spec.rb

@@ -57,7 +57,7 @@ Capybara::SpecHelper.spec "#fill_in" do
     extract_results(@session)['description'].should == 'is <strong>very</strong> secret!'
   end
 
-  it "should handle newlines in a textarea", tw: true do
+  it "should handle newlines in a textarea" do
     @session.fill_in('form_description', :with => "\nSome text\n")
     @session.click_button('awesome')
     extract_results(@session)['description'].should == "\r\nSome text\r\n"

spec/selenium_spec_chrome.rb

@@ -1,7 +1,8 @@
 require 'spec_helper'
 
 Capybara.register_driver :selenium_chrome do |app|
-  Capybara::Selenium::Driver.new(app, :browser => :chrome)
+  args = ENV['TRAVIS'] ? ['no-sandbox' ] : []
+  Capybara::Selenium::Driver.new(app, :browser => :chrome, :args => args)
 end
 
 class ChromeTestApp < TestApp