Convert drupal_http_request usage in SearchRankingTest.php to Guzzle

I've included the timeout but it can always be removed if not needed.

+++ b/core/modules/search/lib/Drupal/search/Tests/SearchRankingTest.phpundefined
@@ -16,6 +16,13 @@ class SearchRankingTest extends SearchTestBase {
 
+  /**
+   * The Guzzle HTTP client.
+   *
+   * @var \Guzzle\Http\ClientInterface;
+   */
+  protected $client;

I don't think this is necessary, it's just used once, so just do $client = ...

+++ b/core/modules/search/lib/Drupal/search/Tests/SearchRankingTest.phpundefined
@@ -80,13 +87,15 @@ function testRankings() {
+    $this->client = drupal_container()->get('http_default_client');

This should now use \Drupal::httpClient()

Looks like guzzle defaults to that content type header if you pass in an array of post fields. Neat.

..double post, see below..

It makes sense:)
and this is where statistics.php is being used..i ll know where to look when i will rename it

heh, this looks good, thanks!

All right, let's get this out of the way and close a major!

Committed and pushed to 8.x. Thanks!