Initial support for native accessibility in ARC

components/exo/shell_surface_unittest.cc

Index: components/exo/shell_surface_unittest.cc
diff --git a/components/exo/shell_surface_unittest.cc b/components/exo/shell_surface_unittest.cc
index 135395cc051e063517c46f47f707c4d7683e5d1d..ca7ae49894d1564097f68fcf0e7ad4e8ea67c98e 100644
--- a/components/exo/shell_surface_unittest.cc
+++ b/components/exo/shell_surface_unittest.cc
@@ -19,6 +19,8 @@
 #include "components/exo/test/exo_test_base.h"
 #include "components/exo/test/exo_test_helper.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "ui/accessibility/ax_enums.h"
+#include "ui/accessibility/ax_node_data.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_targeter.h"
@@ -829,5 +831,30 @@ TEST_F(ShellSurfaceTest, SpokenFeedbackFullscreenBackground) {
   EXPECT_EQ(shadow_bounds, shell_surface2.shadow_underlay()->bounds());
 }
 
+TEST_F(ShellSurfaceTest, AccessibilityNodeData) {
+  gfx::Size buffer_size(256, 256);
+  Buffer buffer(exo_test_helper()->CreateGpuMemoryBuffer(buffer_size));
+  Surface surface;
+  ShellSurface shell_surface(&surface, nullptr, gfx::Rect(640, 480), true,
+                             false, ash::kShellWindowId_DefaultContainer);
+
+  surface.Attach(&buffer);
+
+  ui::AXNodeData data;
+  surface.UpdateAXTreeID(1);
+  shell_surface.GetAccessibleNodeData(&data);
+  ASSERT_EQ(1, data.GetIntAttribute(ui::AX_ATTR_CHILD_TREE_ID));
+
+  ui::AXNodeData data2;
+  surface.UpdateAXTreeID(2);
+  shell_surface.GetAccessibleNodeData(&data2);
+  ASSERT_EQ(2, data2.GetIntAttribute(ui::AX_ATTR_CHILD_TREE_ID));
+
+  ui::AXNodeData data3;
+  surface.UpdateAXTreeID(0);
+  shell_surface.GetAccessibleNodeData(&data3);
+  ASSERT_EQ(0, data3.GetIntAttribute(ui::AX_ATTR_CHILD_TREE_ID));
+}
+
 }  // namespace
 }  // namespace exo