Revert of 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 e8dea7e6744b6df7f0de5c5f8461d06a4a73198d..00f3c86ea90c8ec9a497dfd92198eb029c4cf8ec 100644
--- a/content/content_shell.gypi
+++ b/content/content_shell.gypi
@@ -174,6 +174,8 @@
         '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',
@@ -216,6 +218,8 @@
         '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',
@@ -233,17 +237,12 @@
         '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',