[Swiftmailer] create Message by mailer service.

cookbook/email/dev_environment.rst

@@ -91,7 +91,8 @@ Now, suppose you're sending an email to ``recipient@example.com``.
 
     public function indexAction($name)
     {
-        $message = \Swift_Message::newInstance()
+        $mailer = $this->get('mailer');
+        $message = $mailer->createMessage()
             ->setSubject('Hello Email')
             ->setFrom('send@example.com')
             ->setTo('recipient@example.com')
@@ -102,7 +103,7 @@ Now, suppose you're sending an email to ``recipient@example.com``.
                 )
             )
         ;
-        $this->get('mailer')->send($message);
+        $mailer->send($message);
 
         return $this->render(...);
     }

cookbook/email/testing.rst

@@ -14,14 +14,15 @@ Start with an easy controller action that sends an e-mail::
 
     public function sendEmailAction($name)
     {
-        $message = \Swift_Message::newInstance()
+        $mailer = $this->get('mailer');
+        $message = $mailer->createMessage()
             ->setSubject('Hello Email')
             ->setFrom('send@example.com')
             ->setTo('recipient@example.com')
             ->setBody('You should see me from the profiler!')
         ;
 
-        $this->get('mailer')->send($message);
+        $mailer->send($message);
 
         return $this->render(...);
     }

cookbook/web_services/php_soap_extension.rst

@@ -38,11 +38,11 @@ In this case, the SOAP service will allow the client to call a method called
 
         public function hello($name)
         {
-
-            $message = \Swift_Message::newInstance()
-                                    ->setTo('me@example.com')
-                                    ->setSubject('Hello Service')
-                                    ->setBody($name . ' says hi!');
+            $message = $this->mailer->createMessage()
+                ->setTo('me@example.com')
+                ->setSubject('Hello Service')
+                ->setBody($name . ' says hi!')
+            ;
 
             $this->mailer->send($message);