feature #36681 [FrameworkBundle] use the router context by default for assets (nicolas-grekas)

This PR was merged into the 5.1-dev branch.

Discussion
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[FrameworkBundle] use the router context by default for assets

| Q             | A
| ------------- | ---
| Branch?       | master
| Bug fix?      | no
| New feature?  | yes
| Deprecations? | no
| Tickets       | -
| License       | MIT
| Doc PR        | -

Follows #36651 and #21027

This means assets are going to be configured automatically most of the time. The only case where `asset.request_context.base_path` is useful is when the webserver still keeps a `/index.php/` in URLs. (I'm not sure if the doc should tell ppl to use the parameter, or if we should tell ppl to improve the config of their server...)

Commits
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1ac5f68810 [FrameworkBundle] use the router context by default for assets

Author: fabpot

RequestContext.php

@@ -319,4 +319,9 @@ public function setParameter(string $name, $parameter)
 
         return $this;
     }
+
+    public function isSecure(): bool
+    {
+        return 'https' === $this->scheme;
+    }
 }