Beginning of an accessibility implementation for html_viewer.

mojo/services/html_viewer/BUILD.gn

Index: mojo/services/html_viewer/BUILD.gn
diff --git a/mojo/services/html_viewer/BUILD.gn b/mojo/services/html_viewer/BUILD.gn
index b362140823095b5d41ea23d0e40d706fbd64fb9a..e2ea1423af5e0dda71c95b07ae78c3dc37a90ced 100644
--- a/mojo/services/html_viewer/BUILD.gn
+++ b/mojo/services/html_viewer/BUILD.gn
@@ -2,9 +2,10 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-# GYP version: mojo/mojo_services.gypi:html_viewer
-shared_library("html_viewer") {
+source_set("lib") {
   sources = [
+    "ax_provider_impl.cc",
+    "ax_provider_impl.h",
     "blink_basic_type_converters.cc",
     "blink_basic_type_converters.h",
     "blink_input_events_type_converters.cc",
@@ -13,9 +14,10 @@ shared_library("html_viewer") {
     "blink_platform_impl.h",
     "blink_url_request_type_converters.cc",
     "blink_url_request_type_converters.h",
-    "html_viewer.cc",
     "html_document_view.cc",
     "html_document_view.h",
+    "mojo_blink_platform_impl.cc",
+    "mojo_blink_platform_impl.h",
     "webclipboard_impl.cc",
     "webclipboard_impl.h",
     "webcookiejar_impl.cc",
@@ -59,6 +61,7 @@ shared_library("html_viewer") {
     "//mojo/public/interfaces/application",
     "//mojo/services/public/cpp/network",
     "//mojo/services/public/cpp/view_manager",
+    "//mojo/services/public/interfaces/accessibility",
     "//mojo/services/public/interfaces/clipboard",
     "//mojo/services/public/interfaces/content_handler",
     "//mojo/services/public/interfaces/gpu",
@@ -68,8 +71,32 @@ shared_library("html_viewer") {
     "//mojo/services/public/interfaces/surfaces",
     "//net",
     "//skia",
-    "//third_party/WebKit/public:blink",
     "//ui/native_theme",
     "//url",
   ]
+
+  public_deps = [
+    "//third_party/WebKit/public:blink",
+  ]
+}
+
+# GYP version: mojo/mojo_services.gypi:html_viewer
+shared_library("html_viewer") {
+  sources = [
+    "html_viewer.cc",
+  ]
+  deps = [
+    ":lib",
+  ]
+}
+
+test("tests") {
+  output_name = "html_viewer_unittests"
+  sources = [
+    "ax_provider_impl_unittest.cc",
+  ]
+  deps = [
+    ":lib",
+    "//base/test:run_all_unittests",
+  ]
 }