VR: Use ToolbarModel to drive VR URL bar state.

chrome/browser/android/vr_shell/BUILD.gn

Index: chrome/browser/android/vr_shell/BUILD.gn
diff --git a/chrome/browser/android/vr_shell/BUILD.gn b/chrome/browser/android/vr_shell/BUILD.gn
index 89c566d46e3e1d9fea0164e115214acb05003138..826440d6664ac8870a62d645c498c765c7ae7717 100644
--- a/chrome/browser/android/vr_shell/BUILD.gn
+++ b/chrome/browser/android/vr_shell/BUILD.gn
@@ -56,6 +56,10 @@ static_library("vr_common") {
     "textures/ui_texture.h",
     "textures/url_bar_texture.cc",
     "textures/url_bar_texture.h",
+    "toolbar_helper.cc",
+    "toolbar_helper.h",
+    "toolbar_state.cc",
+    "toolbar_state.h",
     "ui_browser_interface.h",
     "ui_elements/button.cc",
     "ui_elements/button.h",
@@ -93,7 +97,7 @@ static_library("vr_common") {
     "//chrome/app:generated_resources",
     "//components/security_state/core",
     "//components/strings",
-    "//components/toolbar:vector_icons",
+    "//components/toolbar",
     "//components/url_formatter",
     "//components/vector_icons",
     "//skia",
@@ -211,6 +215,7 @@ test("vr_common_unittests") {
     "//base/test:test_support",
     "//components:components_tests_pak",
     "//components/security_state/core",
+    "//components/toolbar:vector_icons",
     "//skia",
     "//testing/gmock",
     "//testing/gtest",