ui: Cleanup class/struct forward declarations

third_party/WebKit/LayoutTests/imported/wpt/MANIFEST.json

Index: third_party/WebKit/LayoutTests/imported/wpt/MANIFEST.json
diff --git a/third_party/WebKit/LayoutTests/imported/wpt/MANIFEST.json b/third_party/WebKit/LayoutTests/imported/wpt/MANIFEST.json
index 245ba508ff1388500267af09e3f4773c4e6d2fa7..5ff2a2ca5bc58edaf3ef1bdd096f635977012af9 100644
--- a/third_party/WebKit/LayoutTests/imported/wpt/MANIFEST.json
+++ b/third_party/WebKit/LayoutTests/imported/wpt/MANIFEST.json
@@ -9440,27 +9440,6 @@
             "url": "/html/obsolete/requirements-for-implementations/the-marquee-element-0/marquee-scrolldelay.html"
           }
         ],
-        "html/rendering/replaced-elements/svg-embedded-sizing/svg-in-iframe-auto.html": [
-          {
-            "path": "html/rendering/replaced-elements/svg-embedded-sizing/svg-in-iframe-auto.html",
-            "timeout": "long",
-            "url": "/html/rendering/replaced-elements/svg-embedded-sizing/svg-in-iframe-auto.html"
-          }
-        ],
-        "html/rendering/replaced-elements/svg-embedded-sizing/svg-in-iframe-fixed.html": [
-          {
-            "path": "html/rendering/replaced-elements/svg-embedded-sizing/svg-in-iframe-fixed.html",
-            "timeout": "long",
-            "url": "/html/rendering/replaced-elements/svg-embedded-sizing/svg-in-iframe-fixed.html"
-          }
-        ],
-        "html/rendering/replaced-elements/svg-embedded-sizing/svg-in-iframe-percentage.html": [
-          {
-            "path": "html/rendering/replaced-elements/svg-embedded-sizing/svg-in-iframe-percentage.html",
-            "timeout": "long",
-            "url": "/html/rendering/replaced-elements/svg-embedded-sizing/svg-in-iframe-percentage.html"
-          }
-        ],
         "html/rendering/replaced-elements/svg-embedded-sizing/svg-in-img-auto.html": [
           {
             "path": "html/rendering/replaced-elements/svg-embedded-sizing/svg-in-img-auto.html",
@@ -9482,27 +9461,6 @@
             "url": "/html/rendering/replaced-elements/svg-embedded-sizing/svg-in-img-percentage.html"
           }
         ],
-        "html/rendering/replaced-elements/svg-embedded-sizing/svg-in-object-auto.html": [
-          {
-            "path": "html/rendering/replaced-elements/svg-embedded-sizing/svg-in-object-auto.html",
-            "timeout": "long",
-            "url": "/html/rendering/replaced-elements/svg-embedded-sizing/svg-in-object-auto.html"
-          }
-        ],
-        "html/rendering/replaced-elements/svg-embedded-sizing/svg-in-object-fixed.html": [
-          {
-            "path": "html/rendering/replaced-elements/svg-embedded-sizing/svg-in-object-fixed.html",
-            "timeout": "long",
-            "url": "/html/rendering/replaced-elements/svg-embedded-sizing/svg-in-object-fixed.html"
-          }
-        ],
-        "html/rendering/replaced-elements/svg-embedded-sizing/svg-in-object-percentage.html": [
-          {
-            "path": "html/rendering/replaced-elements/svg-embedded-sizing/svg-in-object-percentage.html",
-            "timeout": "long",
-            "url": "/html/rendering/replaced-elements/svg-embedded-sizing/svg-in-object-percentage.html"
-          }
-        ],
         "html/rendering/replaced-elements/svg-inline-sizing/svg-inline.html": [
           {
             "path": "html/rendering/replaced-elements/svg-inline-sizing/svg-inline.html",