Add GetScreenBoundsRect to ui::AXPlatformNodeDelegate

ui/accessibility/platform/test_ax_node_wrapper.cc

Index: ui/accessibility/platform/test_ax_node_wrapper.cc
diff --git a/ui/accessibility/platform/test_ax_node_wrapper.cc b/ui/accessibility/platform/test_ax_node_wrapper.cc
index 9561733ee30af96376bec43e1232439e9912fd81..9c249b98d607deb8d051f74faf2356c32ea01040 100644
--- a/ui/accessibility/platform/test_ax_node_wrapper.cc
+++ b/ui/accessibility/platform/test_ax_node_wrapper.cc
@@ -100,8 +100,9 @@ gfx::NativeViewAccessible TestAXNodeWrapper::ChildAtIndex(int index) {
       nullptr;
 }
 
-gfx::Vector2d TestAXNodeWrapper::GetGlobalCoordinateOffset() {
-  return g_offset;
+gfx::Rect TestAXNodeWrapper::GetScreenBoundsRect() const {
+  // The tests using this wrapper just care about the screen offset.
+  return gfx::Rect(g_offset.x(), g_offset.y(), 0, 0);
 }
 
 gfx::NativeViewAccessible TestAXNodeWrapper::HitTestSync(int x, int y) {