Fix rubocop warns

Author: route

.rubocop_todo.yml

@@ -39,15 +39,3 @@ Metrics/PerceivedComplexity:
 # Offense count: 45
 Style/Documentation:
   Enabled: false
-
-# Offense count: 7
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyle.
-# SupportedStyles: compact, exploded
-Style/RaiseArgs:
-  Exclude:
-    - 'lib/ferrum/browser/client.rb'
-    - 'lib/ferrum/browser/command.rb'
-    - 'lib/ferrum/browser/process.rb'
-    - 'lib/ferrum/browser/xvfb.rb'
-    - 'lib/ferrum/frame/runtime.rb'

lib/ferrum/browser/client.rb

@@ -85,16 +85,16 @@ def raise_browser_error(error)
         # Node has disappeared while we were trying to get it
         when "No node with given id found",
              "Could not find node with given id"
-          raise NodeNotFoundError.new(error)
+          raise NodeNotFoundError, error
         # Context is lost, page is reloading
         when "Cannot find context with specified id"
-          raise NoExecutionContextError.new(error)
+          raise NoExecutionContextError, error
         when "No target with given id found"
           raise NoSuchPageError
         when /Could not compute content quads/
           raise CoordinatesNotFoundError
         else
-          raise BrowserError.new(error)
+          raise BrowserError, error
         end
       end
     end

lib/ferrum/browser/command.rb

@@ -30,7 +30,7 @@ def initialize(defaults, options, user_data_dir)
         @options = options
         @user_data_dir = user_data_dir
         @path = options[:browser_path] || ENV["BROWSER_PATH"] || defaults.detect_path
-        raise Cliver::Dependency::NotFound.new(NOT_FOUND) unless @path
+        raise Cliver::Dependency::NotFound, NOT_FOUND unless @path
 
         merge_options
       end

lib/ferrum/browser/xvfb.rb

@@ -18,7 +18,7 @@ def self.xvfb_path
 
       def initialize(options)
         @path = self.class.xvfb_path
-        raise Cliver::Dependency::NotFound.new(NOT_FOUND) unless @path
+        raise Cliver::Dependency::NotFound, NOT_FOUND unless @path
 
         @screen_size = "#{options.fetch(:window_size, [1024, 768]).join('x')}x24"
         @display_id = (Time.now.to_f * 1000).to_i % 100_000_000