[FrameworkBundle] switch to parameter for base url to make it configurable for tests and cli as done for host and scheme in d30943c2e8

UPGRADE-2.2.md

@@ -10,6 +10,13 @@
    `MongoDate` instead of `MongoTimestamp`, which also makes it possible to use
    TTL collections in MongoDB 2.2+ instead of relying on the `gc()` method.
 
+### Routing
+
+  * A new parameter has been added to the DIC: `router.request_context.base_url`
+    You can customize it for your functional tests or for generating urls with
+    the right base url when your are in the cli context.
+
+
 #### Deprecations
 
  * The `Request::splitHttpAcceptHeader()` is deprecated and will be removed in 2.3.

src/Symfony/Bundle/FrameworkBundle/Resources/config/routing.xml

@@ -24,6 +24,7 @@
         <parameter key="router_listener.class">Symfony\Component\HttpKernel\EventListener\RouterListener</parameter>
         <parameter key="router.request_context.host">localhost</parameter>
         <parameter key="router.request_context.scheme">http</parameter>
+        <parameter key="router.request_context.base_url"></parameter>
     </parameters>
 
     <services>
@@ -74,7 +75,7 @@
         <service id="router" alias="router.default" />
 
         <service id="router.request_context" class="%router.request_context.class%" public="false">
-            <argument></argument>
+            <argument>%router.request_context.base_url%</argument>
             <argument>GET</argument>
             <argument>%router.request_context.host%</argument>
             <argument>%router.request_context.scheme%</argument>