Media Notifications: do not show the scheme and trivial subdomains on desktop.

In practice, it means:
 - https://www.example.com => example.com
 - http://www.example.com => example.com
 - https://m.example.com => m.example.com

This is implemented at the Media Session level which should affect all usage of
it.

Bug: 1011900
Change-Id: Id3007daebe200ed6b4ccf3d574e5b15ba8424903
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1846658Reviewed-by: Tommy Steimel <steimel@chromium.org>
Commit-Queue: Mounir Lamouri <mlamouri@chromium.org>
Cr-Commit-Position: refs/heads/master@{#704015}

content/browser/media/session/media_session_impl.cc

@@ -13,7 +13,7 @@
 #include "base/strings/string_util.h"
 #include "base/timer/timer.h"
 #include "build/build_config.h"
-#include "components/url_formatter/elide_url.h"
+#include "components/url_formatter/url_formatter.h"
 #include "content/browser/media/session/audio_focus_delegate.h"
 #include "content/browser/media/session/media_session_controller.h"
 #include "content/browser/media/session/media_session_player_observer.h"
@@ -1344,8 +1344,12 @@ void MediaSessionImpl::RebuildAndNotifyMetadataChanged() {
   base::string16 formatted_origin =
       url.SchemeIsFile()
           ? content_client->GetLocalizedString(IDS_MEDIA_SESSION_FILE_SOURCE)
-          : url_formatter::FormatOriginForSecurityDisplay(
-                url::Origin::Create(url));
+          : url_formatter::FormatUrl(
+                url::Origin::Create(url).GetURL(),
+                url_formatter::kFormatUrlOmitDefaults |
+                    url_formatter::kFormatUrlOmitHTTPS |
+                    url_formatter::kFormatUrlOmitTrivialSubdomains,
+                net::UnescapeRule::SPACES, nullptr, nullptr, nullptr);
   metadata.source_title = formatted_origin;
 
   // If we have no artwork in |images_| or the arwork has changed then we should

content/browser/media/session/media_session_impl_browsertest.cc

@@ -267,9 +267,11 @@ class MediaSessionImplBrowserTest : public content::ContentBrowserTest {
   bool IsDucking() const { return media_session_->is_ducking_; }
 
   base::string16 GetExpectedSourceTitle() {
-    return base::StrCat(
-        {kExpectedSourceTitlePrefix,
-         base::NumberToString16(embedded_test_server()->port())});
+    base::string16 expected_title =
+        base::StrCat({kExpectedSourceTitlePrefix,
+                      base::NumberToString16(embedded_test_server()->port())});
+
+    return expected_title.substr(strlen("http://"));
   }
 
  protected:

content/browser/media/session/media_session_impl_service_routing_unittest.cc

@@ -99,7 +99,7 @@ class MediaSessionImplServiceRoutingTest
     sub_frame_ = main_frame_->AppendChild("sub_frame");
 
     empty_metadata_.title = contents()->GetTitle();
-    empty_metadata_.source_title = base::ASCIIToUTF16("http://www.example.com");
+    empty_metadata_.source_title = base::ASCIIToUTF16("example.com");
   }
 
   void TearDown() override {
@@ -780,7 +780,7 @@ TEST_F(MediaSessionImplServiceRoutingTest, NotifyObserverOnNavigation) {
 
   media_session::MediaMetadata expected_metadata;
   expected_metadata.title = contents()->GetTitle();
-  expected_metadata.source_title = base::ASCIIToUTF16("http://www.google.com");
+  expected_metadata.source_title = base::ASCIIToUTF16("google.com");
   observer.WaitForExpectedMetadata(expected_metadata);
 }