Move WebAXObjectProxy and AccessibleController from CppBoundClass to gin::Wrappable

content/content_shell.gypi

Index: content/content_shell.gypi
diff --git a/content/content_shell.gypi b/content/content_shell.gypi
index 56981a215128e9a5e73d680628ab5059bab2122f..ce837ff8a5113a0af31eee17980a44c9b0d2bac6 100644
--- a/content/content_shell.gypi
+++ b/content/content_shell.gypi
@@ -174,8 +174,6 @@
         'shell/renderer/shell_render_process_observer.h',
         'shell/renderer/shell_render_view_observer.cc',
         'shell/renderer/shell_render_view_observer.h',
-        'shell/renderer/test_runner/AccessibilityController.cpp',
-        'shell/renderer/test_runner/AccessibilityController.h',
         'shell/renderer/test_runner/CppBoundClass.cpp',
         'shell/renderer/test_runner/CppBoundClass.h',
         'shell/renderer/test_runner/CppVariant.cpp',
@@ -218,8 +216,6 @@
         'shell/renderer/test_runner/TestPlugin.h',
         'shell/renderer/test_runner/TestRunner.cpp',
         'shell/renderer/test_runner/TestRunner.h',
-        'shell/renderer/test_runner/WebAXObjectProxy.cpp',
-        'shell/renderer/test_runner/WebAXObjectProxy.h',
         'shell/renderer/test_runner/WebFrameTestProxy.h',
         'shell/renderer/test_runner/WebPermissions.cpp',
         'shell/renderer/test_runner/WebPermissions.h',
@@ -237,12 +233,17 @@
         'shell/renderer/test_runner/WebTestThemeEngineMock.h',
         'shell/renderer/test_runner/WebUserMediaClientMock.cpp',
         'shell/renderer/test_runner/WebUserMediaClientMock.h',
+        'shell/renderer/test_runner/accessibility_controller.cc',
+        'shell/renderer/test_runner/accessibility_controller.h',
         'shell/renderer/test_runner/gamepad_controller.cc',
         'shell/renderer/test_runner/gamepad_controller.h',
         'shell/renderer/test_runner/notification_presenter.cc',
         'shell/renderer/test_runner/notification_presenter.h',
         'shell/renderer/test_runner/text_input_controller.cc',
         'shell/renderer/test_runner/text_input_controller.h',
+        'shell/renderer/test_runner/unsafe_persistent.h',
+        'shell/renderer/test_runner/web_ax_object_proxy.cc',
+        'shell/renderer/test_runner/web_ax_object_proxy.h',
         'shell/renderer/webkit_test_runner.cc',
         'shell/renderer/webkit_test_runner.h',
         'test/layouttest_support.cc',