Move elide_url to its own component

ui/secure_display/BUILD.gn

Index: ui/secure_display/BUILD.gn
diff --git a/ui/secure_display/BUILD.gn b/ui/secure_display/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..a10534731869d1ed577fee3c57cbe1eb10bd2c46
--- /dev/null
+++ b/ui/secure_display/BUILD.gn
@@ -0,0 +1,30 @@
+component("secure_display") {
+  sources = [
+    "elide_url.cc",
+    "elide_url.h",
+  ]
+
+  deps = [
+    "//base",
+    "//base:strings",
+    "//net:base",
+    "//ui/gfx",
+    "//url",
+  ]
+
+  defines = [ "SECURE_DISPLAY_IMPLEMENTATION" ]
+}
+
+test("secure_display_unittests") {
+  sources = [
+    "secure_display_unittests",
+    "test/run_all_unittests.cc",
+  ]
+
+  deps = [
+    ":secure_display",
+    "//base/base.gyp:base",
+    "//base/base.gyp:test_support_base",
+    "//testing/gtest",
+  ]
+}