Fix GN build. ui_base was renamed

TBR=scottmg

Review URL: https://codereview.chromium.org/307133002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@273900 0039d316-1c4b-4281-b951-d872f2087c98

webkit/common/BUILD.gn

@@ -27,7 +27,7 @@ component("common") {
     "//skia",
     "//third_party/icu",
     "//third_party/WebKit/public:blink_headers",
-    "//ui/base:ui_base",
+    "//ui/base",
     "//ui/gfx",
     "//ui/gfx/geometry",
     "//ui/resources",